generate response: anytime after 19:45 going to cambridge and leaving london kings cross. I need tickets for 8 and the reference number. Intent: book_train. Slots: train-bookpeople=8, train-day=monday, train-departure=london kings cross, train-destination=cambridge, train-leaveat=20:00, after 19:45
Response: I have a 21:17 departure. Would you like a booking?