generate response: That will be London King's Cross, and I'll be travelling on Tuesday.. Intent: find_train. Slots: train-day=tuesday, train-departure=cambridge, train-destination=london kings cross, train-leaveat=12:15
Response: TR0315 is the first train out after 12:15. It departs at 13:00 and arrives at King's Cross at 13:51. Would you like a ticket?