generate response: I need to arrive at the airport by 13:15. Can I get a departure time and also the travel time for a train? Thanks!. Intent: find_train. Slots: train-arriveby=13:15, train-day=wednesday, train-departure=cambridge, train-destination=stansted airport
Response: TR1610 leaves at 5:40 and is a 28 minute trip. Shall I book it?