generate response: The 9:23 arrival is perfect timing! I need it for the same 6 people. Can I please get the reference number for that booking also?. Intent: book_train. Slots: train-arriveby=09:30, 9:30, train-bookpeople=6, train-day=sunday, train-departure=birmingham new street, train-destination=cambridge, train-leaveat=09:23, 9:23
Response: The reference number is 0U3B4A3O . What else can I do for you?