diff --git a/alembic/versions/8d205370475_add_transferrable_until.py b/alembic/versions/8d205370475_add_transferrable_until.py
new file mode 100644
index 00000000..472b7871
--- /dev/null
+++ b/alembic/versions/8d205370475_add_transferrable_until.py
@@ -0,0 +1,22 @@
+"""add_transferrable_until
+
+Revision ID: 8d205370475
+Revises: 4246213b032b
+Create Date: 2016-11-08 14:12:26.061615
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '8d205370475'
+down_revision = '4246213b032b'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column('item', sa.Column('transferrable_until', sa.DateTime(), nullable=True))
+
+
+def downgrade():
+    op.drop_column('item', 'transferrable_until')
diff --git a/boxoffice/forms/__init__.py b/boxoffice/forms/__init__.py
index 716b7785..5ec01f3b 100644
--- a/boxoffice/forms/__init__.py
+++ b/boxoffice/forms/__init__.py
@@ -1,3 +1,4 @@
 # -*- coding: utf-8 -*-
 
 from .order import *
+from .assignee import *
diff --git a/boxoffice/forms/assignee.py b/boxoffice/forms/assignee.py
new file mode 100644
index 00000000..e2a5cfc0
--- /dev/null
+++ b/boxoffice/forms/assignee.py
@@ -0,0 +1,12 @@
+# -*- coding: utf-8 -*-
+
+from baseframe import __
+import baseframe.forms as forms
+
+__all__ = ['AssigneeForm']
+
+
+class AssigneeForm(forms.Form):
+    email = forms.EmailField(__("Email"), validators=[forms.validators.DataRequired(), forms.validators.Length(max=80)])
+    fullname = forms.StringField(__("Full name"), validators=[forms.validators.DataRequired()])
+    phone = forms.StringField(__("Phone number"), validators=[forms.validators.Length(max=16)])
diff --git a/boxoffice/mailclient.py b/boxoffice/mailclient.py
index 72814c6a..01da2591 100644
--- a/boxoffice/mailclient.py
+++ b/boxoffice/mailclient.py
@@ -55,7 +55,7 @@ def send_line_item_cancellation_mail(line_item_id, subject="Ticket Cancellation"
 
 
 @job('boxoffice')
-def send_ticket_assignment_mail(line_item_id):
+def send_ticket_assignment_mail(line_item_id, recipient_list, cc_list=[]):
     """
     Sends a confirmation email once details are filled and ticket has been assigned.
     """
@@ -63,7 +63,7 @@ def send_ticket_assignment_mail(line_item_id):
         line_item = LineItem.query.get(line_item_id)
         order = line_item.order
         subject = order.item_collection.title + ": Here's your ticket"
-        msg = Message(subject=subject, recipients=[line_item.current_assignee.email], bcc=[order.buyer_email])
+        msg = Message(subject=subject, recipients=recipient_list, cc=cc_list)
         html = email_transform(render_template('ticket_assignment_mail.html', order=order, org=order.organization, line_item=line_item, base_url=app.config['BASE_URL']))
         msg.html = html
         msg.body = html2text(html)
diff --git a/boxoffice/models/item.py b/boxoffice/models/item.py
index ad4cf9d0..bb1e5160 100644
--- a/boxoffice/models/item.py
+++ b/boxoffice/models/item.py
@@ -36,6 +36,7 @@ class Item(BaseScopedNameMixin, db.Model):
     assignee_details = db.Column(JsonDict, default={}, nullable=False)
 
     cancellable_until = db.Column(db.DateTime, nullable=True)
+    transferrable_until = db.Column(db.DateTime, nullable=True)
 
     def current_price(self):
         """
diff --git a/boxoffice/models/line_item.py b/boxoffice/models/line_item.py
index 292d5559..9491d1c7 100644
--- a/boxoffice/models/line_item.py
+++ b/boxoffice/models/line_item.py
@@ -151,6 +151,10 @@ def fetch_all_details(cls, item_collection):
         line_item_query = db.select([cls.id, Order.invoice_no, Item.title, cls.base_amount, cls.discounted_amount, cls.final_amount, DiscountPolicy.title, DiscountCoupon.code, Order.buyer_fullname, Order.buyer_email, Order.buyer_phone, Assignee.fullname, Assignee.email, Assignee.phone, Assignee.details, OrderSession.utm_campaign, OrderSession.utm_source, OrderSession.utm_medium, OrderSession.utm_term, OrderSession.utm_content, OrderSession.utm_id, OrderSession.gclid, OrderSession.referrer]).select_from(line_item_join).where(cls.status == LINE_ITEM_STATUS.CONFIRMED).where(Order.item_collection == item_collection).order_by('created_at')
         return db.session.execute(line_item_query).fetchall()
 
+    def is_transferrable(self):
+        return self.is_confirmed and (datetime.datetime.now() < self.item.transferrable_until
+            if self.item.transferrable_until else True)
+
 
 def get_availability(cls, item_ids):
     """Returns a dict -> {'item_id': ('item title', 'quantity_total', 'line_item_count')}"""
diff --git a/boxoffice/static/css/app.css b/boxoffice/static/css/app.css
index 76bbbada..b7a6b055 100644
--- a/boxoffice/static/css/app.css
+++ b/boxoffice/static/css/app.css
@@ -156,7 +156,8 @@ a.boxoffice-button:focus {
   -webkit-transition: 0.2s ease all;
 }
 
-.group-input:disabled {
+.group-input:disabled,
+.group-input.disabled {
   position: relative;
   background-color: transparent;
   color: #CCC;
@@ -521,7 +522,7 @@ a.boxoffice-button:focus {
   text-align: center;
 }
 
-.attendee-form-title {
+.assignee-form-title {
   font-size: 18px;
   font-weight: bold;
   padding: 15px 0;
diff --git a/boxoffice/static/js/views/order.js b/boxoffice/static/js/views/order.js
index 93298caa..2c41311d 100644
--- a/boxoffice/static/js/views/order.js
+++ b/boxoffice/static/js/views/order.js
@@ -57,7 +57,6 @@ window.Boxoffice.Order = {
       data: {
         order_id: data.order_id,
         access_token: data.access_token,
-        eventName: data.item_collection_name,
         line_items: data.line_items,
         buyer_name: data.buyer_name,
         buyer_email: data.buyer_email,
@@ -65,8 +64,8 @@ window.Boxoffice.Order = {
       },
       scrollTop: function(line_item_seq){
         //Scroll to the corresponding line_item.
-        var domElem =  order.ractive.nodes[ 'item-' + line_item_seq ];
-        $('html,body').animate({ scrollTop: $(domElem).offset().top }, '300');
+        var dom_elem =  order.ractive.nodes[ 'item-' + line_item_seq ];
+        $('html,body').animate({ scrollTop: $(dom_elem).offset().top }, '300');
       },
       viewTicket: function(event, line_item, line_item_seq) {
         event.original.preventDefault();
@@ -102,9 +101,9 @@ window.Boxoffice.Order = {
         }
         order.ractive.set(line_item + '.toAssign', true);
       },
-      addAttendeeDetails: function(event, line_item, line_item_seq, line_item_id) {
+      addAssigneeDetails: function(event, line_item, line_item_seq, line_item_id) {
 
-        var validationConfig = [{
+        var validation_config = [{
             name: 'fullname',
             rules: 'required'
           },
@@ -118,25 +117,26 @@ window.Boxoffice.Order = {
           }
         ];
 
-        var attendeeForm = 'attendee-form-' + line_item_seq;
+        var assignee_form = 'assignee-form-' + line_item_seq;
 
-        var formValidator = new FormValidator(attendeeForm, validationConfig, function(errors, event) {
+        var form_validator = new FormValidator(assignee_form, validation_config, function(errors, event) {
           event.preventDefault();
           order.ractive.set(line_item +  '.assignee.errormsg', '');
+          order.ractive.set(line_item + '.errorMsg', '');
           if (errors.length > 0) {
             order.ractive.set(line_item +  '.assignee.errormsg.'+ errors[0].name, errors[0].message);
             order.ractive.scrollTop(line_item_seq);
           }
           else {
             order.ractive.set(line_item + '.assigningTicket', true);
-            order.ractive.sendAttendeeDetails(line_item, line_item_seq, line_item_id);
+            order.ractive.sendAssigneeDetails(line_item, line_item_seq, line_item_id);
           }
         });
 
-        formValidator.setMessage('required', 'Please fill out the %s field');
-        formValidator.setMessage('valid_email', 'Please enter a valid email');
+        form_validator.setMessage('required', 'Please fill out the %s field');
+        form_validator.setMessage('valid_email', 'Please enter a valid email');
  
-        formValidator.registerCallback('validate_phone', function(phone) {
+        form_validator.registerCallback('validate_phone', function(phone) {
           //Remove all punctations (except +) and letters
           phone = phone.replace(/[^0-9+]/g,'');
           order.ractive.set(line_item + '.assignee.phone', phone);
@@ -144,29 +144,30 @@ window.Boxoffice.Order = {
           var validPhone = /^\+[0-9]+$/;
 
           if (phone.length > 16) {
-            formValidator.setMessage('validate_phone', 'Please enter a valid mobile number');
+            form_validator.setMessage('validate_phone', 'Please enter a valid mobile number');
             return false;
           }
           else if (phone.match(validPhone)) {
             //Indian number starting with '+91'
             if (phone.indexOf('+91') === 0 && phone.length != 13) {
-              formValidator.setMessage('validate_phone', 'Please enter a valid Indian mobile number');
+              form_validator.setMessage('validate_phone', 'Please enter a valid Indian mobile number');
               return false;
             }
           }
           else {
-            formValidator.setMessage('validate_phone', "Please prefix your phone number with '+' and country code.");
+            form_validator.setMessage('validate_phone', "Please prefix your phone number with '+' and country code.");
             return false;
           }
         });
       },
-      sendAttendeeDetails: function(line_item, line_item_seq, line_item_id) {
-        var attendeeForm = 'attendee-details-' + line_item_seq;
-        var formElements = $('#'+ attendeeForm).serializeArray();
-        var attendeeDetails ={};
-        for (var formIndex=0; formIndex < formElements.length; formIndex++) {
-          if (formElements[formIndex].value) {
-            attendeeDetails[formElements[formIndex].name] = formElements[formIndex].value;
+      sendAssigneeDetails: function(line_item, line_item_seq, line_item_id) {
+        var assignee_form = 'assignee-details-' + line_item_seq;
+        var form_elements = $('#'+ assignee_form).serializeArray();
+        var assignee_details ={};
+
+        for (var form_index=0; form_index < form_elements.length; form_index++) {
+          if (form_elements[form_index].value) {
+            assignee_details[form_elements[form_index].name] = form_elements[form_index].value;
           }
         }
 
@@ -175,7 +176,7 @@ window.Boxoffice.Order = {
           type: Boxoffice.Order.config.assign.method,
           contentType: 'application/json',
           data: JSON.stringify({
-            attendee: attendeeDetails,
+            assignee: assignee_details,
             line_item_id: line_item_id
           }),
           timeout: 30000,
@@ -186,12 +187,20 @@ window.Boxoffice.Order = {
             order.ractive.set(line_item + '.toAssign', false);
             order.ractive.set(line_item + '.isTicketAssigned', true);
             order.ractive.scrollTop(line_item_seq);
+            order.ractive.set(line_item + '.assignee', data.result.assignee);
           },
           error: function(response) {
             var ajaxLoad = this;
             ajaxLoad.retries -= 1;
             if (response.readyState === 4) {
-              order.ractive.set(line_item + '.errorMsg', 'Server error');
+              var error_text;
+              if (response.status === 500) {
+                error_text = "Server Error";
+              }
+              else {
+                error_text = JSON.parse(response.responseText).error_description;
+              }
+              order.ractive.set(line_item + '.errorMsg', error_text);
               order.ractive.set(line_item + '.assigningTicket', false);
             } else if (response.readyState === 0) {
               if (ajaxLoad.retries < 0) {
diff --git a/boxoffice/static/sass/_layout.sass b/boxoffice/static/sass/_layout.sass
index 4e21d261..43ee29fc 100644
--- a/boxoffice/static/sass/_layout.sass
+++ b/boxoffice/static/sass/_layout.sass
@@ -129,7 +129,8 @@ a.boxoffice-button:focus
   -moz-transition: 0.2s ease all
   -webkit-transition: 0.2s ease all
 
-.group-input:disabled 
+.group-input:disabled,
+.group-input.disabled 
   position: relative
   background-color: transparent
   color: $color-form-disabled-label
diff --git a/boxoffice/static/sass/_order.sass b/boxoffice/static/sass/_order.sass
index 1a1718ca..63f32767 100644
--- a/boxoffice/static/sass/_order.sass
+++ b/boxoffice/static/sass/_order.sass
@@ -71,7 +71,7 @@
   margin: 0 0 5px
   text-align: center
 
-.attendee-form-title
+.assignee-form-title
   font-size: 18px
   font-weight: bold
   padding: 15px 0
diff --git a/boxoffice/templates/order.html b/boxoffice/templates/order.html
index c1e0e14b..acf70467 100644
--- a/boxoffice/templates/order.html
+++ b/boxoffice/templates/order.html
@@ -22,7 +22,7 @@ <h1 class="header">{{order.item_collection.title}} Ticket Assignment</h1>
     </div>
     
     <div class="row" id="boxoffice-order">
-      <p class="text-center" id="notify-msg"><span id="error-description">Loading. </span>If this takes too long, please mail {{order.item_collection.organization.contact_email}} with your receipt number.</p>
+      <p class="text-center" id="notify-msg"><span id="error-description">Loading. If you are behind a firewall or using any script blocking extension, please ensure your browser can load static.hasgeek.co.in</span><br>For further queries, please write to us at {{order.item_collection.organization.contact_email}} with your receipt number.</p>
       {%- raw %}
         <script id='boxoffice-ticket-template' type='text/ractive'>
           {{#line_items:line_item}}
@@ -53,7 +53,11 @@ <h1 class="header">{{order.item_collection.title}} Ticket Assignment</h1>
                         <form class="assignee-form" role="form" name="assignee-form">
                         {{#if assignee.id || isTicketAssigned}}
                             <div class="text-center continue-btn-wrapper">
-                              <button class="boxoffice-button boxoffice-button-action" on-click="assign(event, event.keypath, true)">Transfer/Edit</button>
+                              {{#is_transferrable}}
+                                <button class="boxoffice-button boxoffice-button-action" on-click="assign(event, event.keypath, true)">Transfer/Edit</button>
+                              {{else}}
+                                <button class="boxoffice-button boxoffice-button-action" on-click="assign(event, event.keypath, true)">Edit</button>
+                              {{/}}
                             </div>
                         {{else}}
                             <p class="assign-form-title">Assign this ticket</p>             
@@ -76,24 +80,24 @@ <h1 class="header">{{order.item_collection.title}} Ticket Assignment</h1>
                     </div>
                   {{else}}
                     <div class="content-box clearfix" intro='fly:{"x":20,"y":"0"}'>
-                      <h4 class="text-center attendee-form-title">Please fill the attendee details</h4>   
-                      <form class="attendee-form" role="form" name="attendee-form-{{seq}}" id="attendee-details-{{seq}}"> 
+                      <h4 class="text-center assignee-form-title">Please fill the attendee details</h4>
+                      <form class="assignee-form" role="form" name="assignee-form-{{seq}}" id="assignee-details-{{seq}}">
                           <div class="group">   
-                            <input class="group-input {{#filled || assignee.fullname}}filled{{/}}" type="text" name="fullname" value="{{assignee.fullname}}" on-blur="inputFieldEdit(event, event.keypath)">
+                            <input class="group-input {{#filled || assignee.fullname}}filled{{/}} {{#if assignee.id && assignee.fullname && !is_transferrable}}disabled{{/if}}" type="text" name="fullname" value="{{assignee.fullname}}" {{#if assignee.id && assignee.fullname && !is_transferrable}}readonly="readonly"{{/if}} on-blur="inputFieldEdit(event, event.keypath)" twoway="false">
                             <span class="bar"></span>
                             <label class="group-label">Fullname</label>
                             {{#assignee.errormsg.fullname}}<p class="form-error-msg">{{ assignee.errormsg.fullname }}</p>{{/}}
                           </div>
                             
                           <div class="group">  
-                            <input class="group-input {{#filled || assignee.email}}filled{{/}}" type="text" name="email" value="{{assignee.email}}" on-blur="inputFieldEdit(event, event.keypath)">
+                            <input class="group-input {{#filled || assignee.email}}filled{{/}} {{#if assignee.id && assignee.email && !is_transferrable}}disabled{{/if}}" type="text" name="email" value="{{assignee.email}}" {{#if assignee.id && assignee.email && !is_transferrable}}readonly="readonly"{{/if}} on-blur="inputFieldEdit(event, event.keypath)" twoway="false">
                             <span class="bar"></span>
                             <label class="group-label">Email</label>
                             {{#assignee.errormsg.email}}<p class="form-error-msg">{{ assignee.errormsg.email }}</p>{{/}}
                           </div>
 
                           <div class="group">      
-                            <input class="group-input {{#filled || assignee.phone}}filled{{/}}" type="text" name="phone" value="{{assignee.phone}}" on-blur="inputFieldEdit(event, event.keypath)">
+                            <input class="group-input {{#filled || assignee.phone}}filled{{/}}" type="text" name="phone" value="{{assignee.phone}}" on-blur="inputFieldEdit(event, event.keypath)" twoway="false">
                             <span class="bar"></span>
                             <label class="group-label">Phone</label>
                             {{#assignee.errormsg.phone}}<p class="form-error-msg">{{ assignee.errormsg.phone }}</p>{{/}}
@@ -102,14 +106,14 @@ <h4 class="text-center attendee-form-title">Please fill the attendee details</h4
                           {{#assignee_details: field}}
                             {{#if field_type === 'string'}}
                               <div class="group">  
-                                <input class="group-input {{#filled || assignee.details[field]}}filled{{/}}" type="text" name="{{field}}" value="{{assignee.details[field]}}" on-blur="inputFieldEdit(event, event.keypath)">
+                                <input class="group-input {{#filled || assignee.details[field]}}filled{{/}}" type="text" name="{{field}}" value="{{assignee.details[field]}}" on-blur="inputFieldEdit(event, event.keypath)" twoway="false">
                                 <span class="bar"></span>
                                 <label class="group-label">{{label}}</label>
                               </div>
                             {{elseif field_type === 'select'}}
                               <div class="group-select">
                                 <p class="field-title filled">{{label}}</p>
-                                <select name="{{field}}" value="{{assignee.details[field]}}">
+                                <select name="{{field}}" value="{{assignee.details[field]}}" twoway="false">
                                   {{#options: option}}
                                     <option value="{{options[option]}}">{{options[option]}}</option>
                                   {{/options}}
@@ -123,13 +127,13 @@ <h4 class="text-center attendee-form-title">Please fill the attendee details</h4
                             {{elseif field_type === 'textbox'}}
                               <div class="group">
                                 <label class="field-title">{{label}}</label>
-                                <textarea class="form-control" name="{{field}}" value="{{assignee.details[field]}}"></textarea>
+                                <textarea class="form-control" name="{{field}}" value="{{assignee.details[field]}}" twoway="false"></textarea>
                               </div>
                             {{/if}}
                           {{/}}
                           <div class="assign-btn-wrapper">
                             <button type="button" class="boxoffice-button boxoffice-button-info" on-click="viewTicket(event, event.keypath, seq)">Back</button>
-                            <button type="submit" class="boxoffice-button boxoffice-button-action" on-click="addAttendeeDetails(event, event.keypath, seq, id)" {{#assigningTicket}}disabled{{/}}>
+                            <button type="submit" class="boxoffice-button boxoffice-button-action" on-click="addAssigneeDetails(event, event.keypath, seq, id)" {{#assigningTicket}}disabled{{/}}>
                                 {{#if assignee.id || isTicketAssigned}}Update{{else}}Assign ticket{{/if}}
                                 {{#assigningTicket}}<i class="fa fa-spinner fa-spin" intro='fly:{"x":0,"y":"0"}'>{{/}}
                             </button>
diff --git a/boxoffice/views/order.py b/boxoffice/views/order.py
index 26630b24..af553667 100644
--- a/boxoffice/views/order.py
+++ b/boxoffice/views/order.py
@@ -66,6 +66,7 @@ def jsonify_order(data):
             'assignee': jsonify_assignee(line_item.current_assignee),
             'is_confirmed': line_item.is_confirmed,
             'is_cancelled': line_item.is_cancelled,
+            'is_transferrable': line_item.is_transferrable(),
             'cancelled_at': date_format(line_item.cancelled_at) if line_item.cancelled_at else "",
         })
     return jsonify(order_id=order.id, access_token=order.access_token,
diff --git a/boxoffice/views/participant.py b/boxoffice/views/participant.py
index d7e922ab..444a5045 100644
--- a/boxoffice/views/participant.py
+++ b/boxoffice/views/participant.py
@@ -5,7 +5,9 @@
 from ..models import db
 from ..models import LineItem, Assignee
 from ..models import Order
+from ..forms import AssigneeForm
 from coaster.views import load_models
+from order import jsonify_assignee
 from boxoffice.mailclient import send_ticket_assignment_mail
 from utils import xhr_only
 
@@ -19,30 +21,43 @@ def assign(order):
     """
     Assign a line_item to a participant
     """
-    assignee_dict = request.json.get('attendee')
-    if not request.json or not assignee_dict or not assignee_dict.get('email') or not assignee_dict.get('fullname'):
+    if not request.json.get('assignee'):
         return make_response(jsonify(status='error', error='missing_attendee_details', error_description="Attendee details are missing"), 400)
+
     line_item = LineItem.query.get(request.json.get('line_item_id'))
     if line_item.is_cancelled:
         return make_response(jsonify(status='error', error='cancelled_ticket', error_description="Ticket has been cancelled"), 400)
 
+    if line_item.current_assignee and not line_item.is_transferrable():
+        return make_response(jsonify(status='error', error='ticket_not_transferrable', error_description="Ticket cannot be transferred."), 400)
+
+    assignee_request_dict = request.json.get('assignee')
+    assignee_form = AssigneeForm.from_json(assignee_request_dict)
+    assignee_form.csrf_enabled = False
+    if not assignee_form.validate():
+        return make_response(jsonify(message='Invalid attendee details'), 400)
+
     item_assignee_details = line_item.item.assignee_details
     assignee_details = {}
     for key in item_assignee_details.keys():
-        assignee_details[key] = assignee_dict.get(key)
-    if line_item.current_assignee and assignee_dict['email'] == line_item.current_assignee.email:
+        assignee_details[key] = assignee_request_dict.get(key)
+
+    if line_item.current_assignee and assignee_form.data.get('email') == line_item.current_assignee.email:
         # updating details of the current assignee
-        line_item.current_assignee.fullname = assignee_dict['fullname']
-        line_item.current_assignee.phone = assignee_dict['phone']
+        line_item.current_assignee.fullname = assignee_form.data.get('fullname')
+        line_item.current_assignee.phone = assignee_form.data.get('phone')
         line_item.current_assignee.details = assignee_details
-        db.session.commit()
     else:
+        cc_list = [line_item.order.buyer_email]
         if line_item.current_assignee:
-            # Archive current assignee
+            # Notify and archive current assignee
+            cc_list.append(line_item.current_assignee.email)
             line_item.current_assignee.current = None
-        new_assignee = Assignee(current=True, email=assignee_dict.get('email'), fullname=assignee_dict.get('fullname'),
-        phone=assignee_dict.get('phone'), details=assignee_details, line_item=line_item)
-        db.session.add(new_assignee)
-        db.session.commit()
-        send_ticket_assignment_mail.delay(line_item.id)
-    return make_response(jsonify(status='ok', result={'message': 'Ticket assigned'}), 201)
+        db.session.add(Assignee(current=True,
+            email=assignee_form.data.get('email'),
+            fullname=assignee_form.data.get('fullname'),
+            phone=assignee_form.data.get('phone'),
+            details=assignee_details, line_item=line_item))
+        send_ticket_assignment_mail.delay(line_item.id, [line_item.current_assignee.email], cc_list)
+    db.session.commit()
+    return make_response(jsonify(status='ok', result={'message': 'Ticket assigned', 'assignee': jsonify_assignee(line_item.current_assignee)}), 201)