generate response: I just need to arrive by 18:30 in peterborough the departure time doesn't matter.. Intent: find_train. Slots: train-arriveby=18:30, train-day=sunday, train-departure=cambridge, train-destination=peterborough
Response: TR8293 arrives at 17:56 and TR2913 arrives at 18:24. Would you like me to book tickets on one of them?