generate response: I think that would be good, can you get me 4 tickets?. Intent: book_train. Slots: train-arriveby=16:00, train-bookpeople=4, train-day=monday, train-departure=birmingham new street
Response: Booking was successful. The total fee is 300.39 GBP payable at the station. The reference number is GXTXW2EM . Is there anything else I can help with?