generate response: Sure. I need to leave Peterborough sometime later than 16:45 on Sunday. I am going to Cambridge and need 4 seats.. Intent: book_train. Slots: train-bookpeople=4, train-day=sunday, train-departure=peterborough, train-destination=cambridge, train-leaveat=16:45
Response: I have a train leaving at 16:48, would you like me to book it for you?