title: How to disable DialogFlow history/log?
body: <p>I see that dialog flow saves the history of conversation.
  How to disable that? I need to have below history table always empty.
  <a href="https://i.stack.imgur.com/TiXbA.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TiXbA.jpg" alt="enter image description here"></a></p>