generate response: book for 7 people for 5 days from wednesday. Intent: book_hotel. Slots: restaurant-area=centre, restaurant-bookday=wednesday, restaurant-bookpeople=7, restaurant-booktime=14:30, restaurant-food=italian, restaurant-name=pizza express fen ditton, restaurant-pricerange=moderate, hotel-area=centre, hotel-bookday=wednesday, hotel-bookpeople=7, hotel-bookstay=5, hotel-internet=yes, hotel-name=alexander bed and breakfast, hotel-stars=3, hotel-type=guesthouse
Response: Booking was successful. Reference number is : 62UNRH8C .