title: How to make AWS Lex bot prompt for followup after intent fulfillment (using Lambda)?
body: <p>The bot is not presenting the follow-up prompt even though it is set up in the 'Response' section in the Intent. This is working if the 'ReturnParametersToClient' is selected as the Fulfillment option. When the fulfillment is changed to AWS Lambda function, it does not present the follow-up question anymore. </p>
  
  <p>For example: 
  If my user inputs</p>
  
  <pre><code>3x10
  </code></pre>
  
  <p>I have a Lambda function to do this calculation and return results in the JSON format Lex expects. Thus it displays</p>
  
  <pre><code>30
  </code></pre>
  
  <p>Then, it should present the follow-up question</p>
  
  <pre><code>Would you like me to do another calculation?
  </code></pre>
  
  <p>To which the user can respond</p>
  
  <pre><code>No
  </code></pre>
  
  <p>From what I understand, the 'Response' section in the Intent editor page is precisely where I should be able to configure the question 'Would you like me to do another calculation?' and another message (in the 'Wait for user reply' section if the user replies in the negative.</p>