generate response: Yes. For Friday, I'd like to book 4 people for 2 nights at the cityroomz. Please give me a reference number.. Intent: book_train. Slots: hotel-area=centre, hotel-bookday=friday, hotel-bookpeople=4, hotel-bookstay=2, hotel-name=cityroomz, hotel-pricerange=moderate, hotel-type=hotel, train-arriveby=17:45, train-bookpeople=4, train-day=friday, train-departure=broxbourne, train-destination=cambridge
Response: Your booking is successful the reference number is FP3FUS6E .