generate response: okay well then do so, I don't have all day. Intent: book_train. Slots: train-bookpeople=1, train-day=tuesday, train-departure=london kings cross, train-destination=cambridge, train-leaveat=17:15
Response: Actually, Train TR2471 leaves London Kings Cross at 23:17 at a cost of 23.60 pounds. I have booked one seat, reference number XNIAW5CW .