generate response: That works, can you book seats for 4 on that and give me the reference number?. Intent: book_train. Slots: train-arriveby=12:30, train-bookpeople=4, train-departure=broxbourne, train-destination=cambridge
Response: Booking was successful, the total fee is 71.59 GBP payable at the station . Reference number is : BIBTGCNA . is there anything else i can help you with?