generate response: Are you sure there are no trains going from Cambridge to Peterborough on Sunday leaving after 10:15? What about TR1492 that you said?. Intent: find_train. Slots: train-day=sunday, train-departure=cambridge, train-destination=peterborough, train-leaveat=10:15
Response: The TR1492 train to peterborough leaves at 10:34 and arrives at 11:24, may I book this trip for you?