generate response: No, that's OK. Can I get the latter train's ID, departure time, and how long the trip is?. Intent: find_train. Slots: train-arriveby=08:30, 8:30, train-day=tuesday, train-departure=cambridge, train-destination=london kings cross
Response: The TrainID is TR3343. It departs Cambridge at 7:00 and arrives at London Kings Cross at 7:51. The trip duration is 51 minutes.