generate response: I'll be leaving Sunday from Cambridge and heading to Birmingham New Street. I need to arrive by 19:15. I need to book this for 7 people. Rererence number?. Intent: book_train. Slots: train-arriveby=19:15, train-bookpeople=7, train-day=sunday, train-departure=cambridge, train-destination=birmingham new street
Response: You are booked on TR2776, with the reference number D1P5X7FS . The total fee is 420.56 GBP payable at the station. Is there anything else?