generate response: Yes, that's correct. Ely to Cambridge on Tuesday, for one person, and it needs to leave sometime after 16:45.. Intent: book_train. Slots: train-bookpeople=1, train-day=tuesday, train-departure=ely, train-leaveat=16:45
Response: Booking was successful for TR1431, the total fee is 4.4 GBP payable at the station, reference number is ACJH1DDI .