generate response: on saturday. book for 3 people. Intent: book_train. Slots: train-arriveby=16:15, 4:15 pm, train-bookpeople=3, train-day=saturday, train-departure=cambridge, train-destination=kings lynn
Response: Okay, your booking was successful. The total fee of 23.52 GBP is payable at the station. Your reference number is CCTLXM29 .