Query: user: I need an economy train ticket for March 14th to Phoenix, AZ.
assistant: Where will you be departing from?
user: I'll be departing from Los Angeles.
assistant: I have 5 trains that match. What do you think about a 6:30 am departure? It is $88.
user: What are the departure and arrival stations?
assistant: The departure is from Union Station and the arrival is at Phoenix Union Station.
user: I like the sound of that.

Intent: Trains:FindTrains