generate response: Yes, that's perfect. Can you please book it for the same party and provide me with a reference number.. Intent: book_train. Slots: train-bookpeople=5, train-day=saturday, train-departure=cambridge, train-destination=london liverpool street, train-leaveat=14:45
Response: You are all set, the cost is 66.39 GBP payable at the station .The Reference number is : P11XWALE