Query: user: I need to find a train.
assistant: Where are you travelling from?
user: I will be leaving from San Fran.
assistant: When will you be travelling?
user: Ideally I'd like to travel this Sunday if possible.
assistant: Where would you like to travel to?
user: I'm going to LA
assistant: I have found a train that departs at 6:20 am. What do you think? Tickets cost $83.
user: Which station does it leave from?

Intent: Trains:FindTrains