Query: user: I need to find a train.
assistant: Where are you leaving from and where would you like to go?
user: I am leaving Seattle and going to Vancouver.
assistant: When would you like to go?
user: I want to travel on March 2nd.
assistant: I found 9 trains. One costs $57 and leaves at 6:20 am.
user: That will work.

Intent: Trains:FindTrains