generate response: Please book cityroomz for the 7 of us for Saturday for 4 nights, please.. Intent: book_train. Slots: hotel-area=centre, hotel-bookday=saturday, hotel-bookpeople=7, hotel-bookstay=4, hotel-name=cityroomz, hotel-pricerange=moderate, hotel-stars=0, train-bookpeople=7, train-day=saturday, train-departure=kings lynn, train-destination=cambridge, train-leaveat=10:45
Response: Booking was successful. Reference number is : DIKDJE0U .