Query: user: I need a hand today, I nned to buy train tickets from sacramento, I need 1 seat and I don't care the fare class of it.
assistant: when were you thinking to leave and which city do you need to reach by train?
user: I need to be in san francisco and the tickets must be dated 11th of march
assistant: I've looked at the timetables for you and there's a train departing at 7:30 am and it will cost you $45
user: tell me the next one

Intent: Trains:FindTrains