generate response: I won't be able to get out of Peterborough before 19:00 on Friday.. Intent: find_train. Slots: train-day=friday, train-departure=peterborough, train-leaveat=19:00
Response: The first train from Peterborough to Cambridge after 19:00 is the TR5474. Departs Peterborough 19:19, arrives Cambridge 20:09. Would you like me to book a seat for you?