generate response: I would like to leave on Monday after 8:30 to go to the Stansted airport.. Intent: find_train. Slots: train-day=monday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=08:30, 8:30
Response: How about the TR0797 train? It leaves Cambridge at 8:40 and arrives at Stansted at 09:08.