generate response: Can we try for 15:30? I also need the reference number for the train booking.. Intent: book_train. Slots: restaurant-area=centre, restaurant-bookday=friday, restaurant-bookpeople=5, restaurant-booktime=15:30, restaurant-name=fitzbillies restaurant, restaurant-pricerange=expensive, train-bookpeople=5, train-day=friday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=21:30
Response: Your reference number for the train is KVNAC7LA . I was able to book Fitzbillies for you at 15:30. Your reference number for the restaurant is UN2K2CD8 . Is there anything else?