title: New intent in LUIS for multi turn dialogs
body: <p>I am going to create a multi-turn dialog. I didn't get how it should be connected with LUIS models. I checked out documentation, but there are samples with only one turn dialogs. Also, I use Virtual Assistant template.
  I want to do something like this.</p>
  <blockquote>
  <p>User: I want to book a flight</p>
  <p>Bot: What is the destination?</p>
  <p>User: London</p>
  <p>Bot: When?</p>
  <p>User: 21st of September.</p>
  <p>Bot: The ticket was bought.</p>
  </blockquote>
  <p>The questions are what happens on the second step? Should I check out dispatcher? Should I add all possible phrases for all steps inside the intent?</p>