generate response: Yes. Please book that for 1 person and give me the reference number.. Intent: book_train. Slots: train-arriveby=16:45, train-bookpeople=1, train-day=saturday, train-departure=cambridge, train-destination=birmingham new street
Response: I have booked 1 ticket for TR4975. The reference number is K88O0GEZ . It leaves Cambridge at 05:01.