generate response: Yes, that would work. Can you book me 4 tickets please?. Intent: book_train. Slots: train-arriveby=17:45, train-bookpeople=4, train-day=friday, train-departure=cambridge, train-destination=london liverpool street
Response: Booking was successful, the total fee is 66.4 GBP payable at the station . Reference number is : X5EM7DTZ . Is there anything else?