generate response: It should be for wednesday at 17:45 and 7 people please. Intent: book_train. Slots: restaurant-bookday=wednesday, restaurant-bookpeople=7, restaurant-booktime=17:45, restaurant-name=travellers rest, train-bookpeople=7, train-day=wednesday, train-departure=stansted airport, train-destination=cambridge, train-leaveat=10:15
Response: Your booking was successful and your reference number is 79UL6EX4 .