generate response: Yes please and can you send me the reference number. Thank you. Intent: book_train. Slots: train-arriveby=19:32, train-bookpeople=1, train-day=friday, train-departure=broxbourne, train-destination=cambridge, train-leaveat=18:15
Response: Booking was successful, the total fee is 17.89 GBP payable at the station . Reference number is : N4UPROAM .