generate response: Can you book it for me and send me the reference number?. Intent: book_train. Slots: train-arriveby=08:30, 8:30, train-bookpeople=1, train-day=wednesday, train-departure=stevenage, train-destination=cambridge
Response: Booking was successful, the total fee is 12.8 GBP payable at the station . Reference number is : 26GRQWBX .