Query: user: I'd like to find a train going from Portland, OR with flexible tickets.
assistant: What's your destination, and when are you travelling?
user: The 1st of this month, heading to seattle, WA
assistant: I have 9 options. How about this one leaving at 9:10 am for $80.
user: Sounds good, can I find a house there?

Intent: Trains:FindTrains