Query: user: Can you find a one way flight for me?
assistant: where are you going and what day works best?
user: i'm going to philadelphia on the 7th of this month and i prefer united airlines.
assistant: where are you leaving from?
user: i'm leaving from chicago.
assistant: there's 1 flight from united airlines that leaves at 4:25 pm that costs $126.
user: is it just one ticket?
assistant: yes it's for 1 traveller.
user: when does it land?
assistant: the flight lands at 7:36 pm.
user: okay that works. can you find trains that go there?
assistant: do you want it to leave on march 7th?
user: no, look for the 12th of march.
assistant: there are 3 trains for you. there's one that leaves at 8:30 am and costs $108.
user: where does it leave from and where does it arrive?
assistant: it leaves from 30th street station and arrives at chicago union station.
user: are there no other trains?
assistant: there's a train that leaves at 2:40 pm for $97.
user: that works for me. can you book the train tickets?

Intent: Trains:GetTrainTickets