diff --git a/libraries/botbuilder-dialogs/src/prompts/confirmPrompt.ts b/libraries/botbuilder-dialogs/src/prompts/confirmPrompt.ts
index 7b8b94efcd..7ca70a8e09 100644
--- a/libraries/botbuilder-dialogs/src/prompts/confirmPrompt.ts
+++ b/libraries/botbuilder-dialogs/src/prompts/confirmPrompt.ts
@@ -7,7 +7,7 @@
  */
 import * as Recognizers from '@microsoft/recognizers-text-choice';
 import { Activity, TurnContext } from 'botbuilder-core';
-import { Choice, ChoiceFactoryOptions } from '../choices';
+import { Choice, ChoiceFactoryOptions, recognizeChoices } from '../choices';
 import { ListStyle, Prompt, PromptOptions, PromptRecognizerResult, PromptValidator } from './prompt';
 
 /**
@@ -22,7 +22,7 @@ export class ConfirmPrompt extends Prompt<boolean> {
     /**
      * Default confirm choices for a range of locales.
      */
-    public static defaultConfirmChoices: { [locale: string]: (string|Choice)[] } = {
+    public static defaultConfirmChoices: { [locale: string]: (string | Choice)[] } = {
         'es-es': ['Sí', 'No'],
         'nl-nl': ['Ja', 'Nee'],
         'en-us': ['Yes', 'No'],
@@ -49,7 +49,7 @@ export class ConfirmPrompt extends Prompt<boolean> {
     /**
      * The prompts default locale that should be recognized.
      */
-    public defaultLocale: string|undefined;
+    public defaultLocale: string | undefined;
 
     /**
      * Style of the "yes" and "no" choices rendered to the user when prompting.
@@ -63,12 +63,12 @@ export class ConfirmPrompt extends Prompt<boolean> {
      * Additional options passed to the `ChoiceFactory` and used to tweak the style of choices
      * rendered to the user.
      */
-    public choiceOptions: ChoiceFactoryOptions|undefined;
+    public choiceOptions: ChoiceFactoryOptions | undefined;
 
     /**
      * Custom list of choices to send for the prompt.
      */
-    public confirmChoices: (string|Choice)[]|undefined;
+    public confirmChoices: (string | Choice)[] | undefined;
 
     /**
      * Creates a new ConfirmPrompt instance.
@@ -113,6 +113,19 @@ export class ConfirmPrompt extends Prompt<boolean> {
         if (results.length > 0 && results[0].resolution) {
             result.succeeded = true;
             result.value = results[0].resolution.value;
+        } else {
+            // If the prompt text was sent to the user with numbers, the prompt should recognize number choices.
+            const choiceOptions = this.choiceOptions || ConfirmPrompt.defaultChoiceOptions[locale];
+
+            if (typeof choiceOptions.includeNumbers !== 'boolean' || choiceOptions.includeNumbers) {
+                const confirmChoices = this.confirmChoices || ConfirmPrompt.defaultConfirmChoices[locale];
+                const choices = [confirmChoices[0], confirmChoices[1]];
+                const secondOrMoreAttemptResults = recognizeChoices(utterance, choices);
+                if (secondOrMoreAttemptResults.length > 0) {
+                    result.succeeded = true;
+                    result.value = secondOrMoreAttemptResults[0].resolution.index === 0;
+                }
+            }
         }
 
         return result;
diff --git a/libraries/botbuilder-dialogs/src/prompts/prompt.ts b/libraries/botbuilder-dialogs/src/prompts/prompt.ts
index 2c01ec8be7..f2f8c383c3 100644
--- a/libraries/botbuilder-dialogs/src/prompts/prompt.ts
+++ b/libraries/botbuilder-dialogs/src/prompts/prompt.ts
@@ -298,6 +298,8 @@ export abstract class Prompt<T> extends Dialog {
 
         // Update prompt with text and actions
         if (typeof prompt === 'object') {
+            // Clone the prompt Activity as to not modify the original prompt.
+            prompt = JSON.parse(JSON.stringify(prompt)) as Activity;
             prompt.text = msg.text;
             if (msg.suggestedActions && Array.isArray(msg.suggestedActions.actions) && msg.suggestedActions.actions.length > 0) {
                 prompt.suggestedActions = msg.suggestedActions;
diff --git a/libraries/botbuilder-dialogs/tests/confirmPrompt.test.js b/libraries/botbuilder-dialogs/tests/confirmPrompt.test.js
index 6e05b4b2b4..aa574d09ee 100644
--- a/libraries/botbuilder-dialogs/tests/confirmPrompt.test.js
+++ b/libraries/botbuilder-dialogs/tests/confirmPrompt.test.js
@@ -18,7 +18,7 @@ describe('ConfirmPrompt', function () {
             if (results.status === DialogTurnStatus.empty) {
                 await dc.prompt('prompt', { prompt: 'Please confirm.' });
             } else if (results.status === DialogTurnStatus.complete) {
-                await turnContext.sendActivity(`The result found is '${results.result}'.`);
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
             }
             await convoState.saveChanges(turnContext);
         });
@@ -45,7 +45,7 @@ describe('ConfirmPrompt', function () {
             if (results.status === DialogTurnStatus.empty) {
                 await dc.prompt('prompt', { prompt: 'Please confirm. Yes or No' });
             } else if (results.status === DialogTurnStatus.complete) {
-                await turnContext.sendActivity(`The result found is '${results.result}'.`);
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
             }
             await convoState.saveChanges(turnContext);
         });
@@ -78,7 +78,7 @@ describe('ConfirmPrompt', function () {
                     retryPrompt: `Please reply with 'Yes' or 'No'.`
                 });
             } else if (results.status === DialogTurnStatus.complete) {
-                await turnContext.sendActivity(`The result found is '${results.result}'.`);
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
             }
             await convoState.saveChanges(turnContext);
         });
@@ -111,7 +111,7 @@ describe('ConfirmPrompt', function () {
                     retryPrompt: `Please reply with 'Yes' or 'No'.`
                 });
             } else if (results.status === DialogTurnStatus.complete) {
-                await turnContext.sendActivity(`The result found is '${results.result}'.`);
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
             }
             await convoState.saveChanges(turnContext);
         });
@@ -146,7 +146,7 @@ describe('ConfirmPrompt', function () {
                     retryPrompt: `Please reply with 'Yes' or 'No'.`
                 });
             } else if (results.status === DialogTurnStatus.complete) {
-                await turnContext.sendActivity(`The result found is '${results.result}'.`);
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
             }
             await convoState.saveChanges(turnContext);
         });
@@ -182,7 +182,7 @@ describe('ConfirmPrompt', function () {
             if (results.status === DialogTurnStatus.empty) {
                 await dc.beginDialog('prompt');
             } else if (results.status === DialogTurnStatus.complete) {
-                await turnContext.sendActivity(`The result found is '${results.result}'.`);
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
             }
             await convoState.saveChanges(turnContext);
         });
@@ -313,4 +313,161 @@ describe('ConfirmPrompt', function () {
             .send({ text: 'いいえ', type: ActivityTypes.Message, locale: 'ja-jp' })
             .assertReply('false');
     });
+
+    it('should recognize yes with no PromptOptions.', async function () {
+        const adapter = new TestAdapter(async (turnContext) => {
+            const dc = await dialogs.createContext(turnContext);
+
+            const results = await dc.continueDialog();
+            if (results.status === DialogTurnStatus.empty) {
+                await dc.prompt('prompt');
+            } else if (results.status === DialogTurnStatus.complete) {
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
+            }
+            await convoState.saveChanges(turnContext);
+        });
+
+        const convoState = new ConversationState(new MemoryStorage());
+
+        const dialogState = convoState.createProperty('dialogState');
+        const dialogs = new DialogSet(dialogState);
+        const prompt = new ConfirmPrompt('prompt');
+        prompt.choiceOptions = { includeNumbers: true };
+        dialogs.add(prompt);
+
+        await adapter.send('Hello')
+            .assertReply(' (1) Yes or (2) No')
+            .send('lala')
+            .assertReply(' (1) Yes or (2) No')
+            .send('yes')
+            .assertReply(`The result found is 'true'.`);
+    });
+
+    it('should recognize valid number when choiceOptions.includeNumbers is true.', async function () {
+        const adapter = new TestAdapter(async (turnContext) => {
+            const dc = await dialogs.createContext(turnContext);
+
+            const results = await dc.continueDialog();
+            if (results.status === DialogTurnStatus.empty) {
+                await dc.prompt('prompt', {
+                    prompt: { text: 'Please confirm.', type: ActivityTypes.Message },
+                    retryPrompt: { text: 'Please confirm, say "yes" or "no" or something like that.', type: ActivityTypes.Message }
+                });
+            } else if (results.status === DialogTurnStatus.complete) {
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
+            }
+            await convoState.saveChanges(turnContext);
+        });
+
+        const convoState = new ConversationState(new MemoryStorage());
+
+        const dialogState = convoState.createProperty('dialogState');
+        const dialogs = new DialogSet(dialogState);
+        const prompt = new ConfirmPrompt('prompt');
+        prompt.choiceOptions = { includeNumbers: true };
+        dialogs.add(prompt);
+
+        await adapter.send('Hello')
+            .assertReply('Please confirm. (1) Yes or (2) No')
+            .send('lala')
+            .assertReply('Please confirm, say "yes" or "no" or something like that. (1) Yes or (2) No')
+            .send('1')
+            .assertReply(`The result found is 'true'.`);
+    });
+
+    it('should not recognize invalid number when choiceOptions.includeNumbers is true.', async function () {
+        const adapter = new TestAdapter(async (turnContext) => {
+            const dc = await dialogs.createContext(turnContext);
+
+            const results = await dc.continueDialog();
+            if (results.status === DialogTurnStatus.empty) {
+                await dc.prompt('prompt', {
+                    prompt: { text: 'Please confirm.', type: ActivityTypes.Message },
+                    retryPrompt: { text: 'Please confirm, say "yes" or "no" or something like that.', type: ActivityTypes.Message }
+                });
+            } else if (results.status === DialogTurnStatus.complete) {
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
+            }
+            await convoState.saveChanges(turnContext);
+        });
+
+        const convoState = new ConversationState(new MemoryStorage());
+
+        const dialogState = convoState.createProperty('dialogState');
+        const dialogs = new DialogSet(dialogState);
+        const prompt = new ConfirmPrompt('prompt');
+        prompt.choiceOptions = { includeNumbers: true };
+        dialogs.add(prompt);
+
+        await adapter.send('Hello')
+            .assertReply('Please confirm. (1) Yes or (2) No')
+            .send('400')
+            .assertReply('Please confirm, say "yes" or "no" or something like that. (1) Yes or (2) No')
+            .send('1')
+            .assertReply(`The result found is 'true'.`);
+    });
+
+    it('should not recognize valid number choice when choiceOptions.includeNumbers is false.', async function () {
+        const adapter = new TestAdapter(async (turnContext) => {
+            const dc = await dialogs.createContext(turnContext);
+
+            const results = await dc.continueDialog();
+            if (results.status === DialogTurnStatus.empty) {
+                await dc.prompt('prompt', {
+                    prompt: { text: 'Please confirm.', type: ActivityTypes.Message },
+                    retryPrompt: { text: 'Please confirm, say "yes" or "no" or something like that.', type: ActivityTypes.Message }
+                });
+            } else if (results.status === DialogTurnStatus.complete) {
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
+            }
+            await convoState.saveChanges(turnContext);
+        });
+
+        const convoState = new ConversationState(new MemoryStorage());
+
+        const dialogState = convoState.createProperty('dialogState');
+        const dialogs = new DialogSet(dialogState);
+        const prompt = new ConfirmPrompt('prompt');
+        prompt.choiceOptions = { includeNumbers: false, inlineSeparator: '~' };
+        dialogs.add(prompt);
+
+        await adapter.send('Hello')
+            .assertReply('Please confirm. Yes or No')
+            .send('1')
+            .assertReply('Please confirm, say "yes" or "no" or something like that. Yes or No')
+            .send('no')
+            .assertReply(`The result found is 'false'.`);
+    });
+
+    it('should recognize valid number when choiceOptions.includeNumbers is undefined.', async function () {
+        const adapter = new TestAdapter(async (turnContext) => {
+            const dc = await dialogs.createContext(turnContext);
+
+            const results = await dc.continueDialog();
+            if (results.status === DialogTurnStatus.empty) {
+                await dc.prompt('prompt', {
+                    prompt: { text: 'Please confirm.', type: ActivityTypes.Message },
+                    retryPrompt: { text: 'Please confirm, say "yes" or "no" or something like that.', type: ActivityTypes.Message }
+                });
+            } else if (results.status === DialogTurnStatus.complete) {
+                await turnContext.sendActivity(`The result found is '${ results.result }'.`);
+            }
+            await convoState.saveChanges(turnContext);
+        });
+
+        const convoState = new ConversationState(new MemoryStorage());
+
+        const dialogState = convoState.createProperty('dialogState');
+        const dialogs = new DialogSet(dialogState);
+        const prompt = new ConfirmPrompt('prompt');
+        prompt.choiceOptions = { includeNumbers: undefined };
+        dialogs.add(prompt);
+
+        await adapter.send('Hello')
+            .assertReply('Please confirm. Yes or No')
+            .send('lala')
+            .assertReply('Please confirm, say "yes" or "no" or something like that. Yes or No')
+            .send('1')
+            .assertReply(`The result found is 'true'.`);
+    });
 });