Query: user: Get me a train ticket.
assistant: What is your departure date?
user: I wish to depart on the 13th of this month.
assistant: What are you departure and arrival cities?
user: I am departing SF and headed to Fresno.
assistant: There is a train departing at 6:20 am with a total bill of $70.
user: What else can you find? Find me something going to SD that is fully refundable.
assistant: There is a train leaving at 6 am with a total cost of $121.
user: What is the arrival station?
assistant: Santa Fe Depot is the arrival station.
user: What is the departure station?

Intent: Trains:FindTrains