generate response: Yes, my apologies, but can you confirm that the TR4003 train leaves after 13:00?. Intent: book_train. Slots: train-bookpeople=7, train-day=saturday, train-departure=cambridge, train-destination=london kings cross, train-leaveat=13:00
Response: It leaves right at 13:00. If you'd like to leave later, the next train departs at 15:00