title: Conversation service error in the middle of the conversation
body: <p>The conversation service gives an error in the middle of the conversation as shown in the image.
  The conversation service is taken from the sample car dashboard <a href="https://github.com/watson-developer-cloud/car-dashboard" rel="nofollow noreferrer">here</a> The conversation works quite alright but sometimes it throws this error.I checked the status but its all fine.
  <a href="https://github.com/watson-developer-cloud/car-dashboard" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ay6wX.png" alt="enter image description here"></a></p>
  
  <p>If I try in the conversation service tool, there is no such error.
  Why is it so?</p>