generate response: I'm not sure but I do need to book a train from Kings Lynn to Cambridge after 16:30 on a Monday.. Intent: find_train. Slots: train-day=monday, train-departure=kings lynn, train-destination=cambridge, train-leaveat=16:30
Response: The first available train from Kings Lynn to Cambridge that leaves after 16:30 on Monday is the TR0415; would you like to go ahead and book this?