generate response: Can you book for arrival closer to 17:30 for one person and give me the reference number. Also I would like to see a college in centre.. Intent: book_train. Slots: attraction-type=college, train-arriveby=17:30, train-bookpeople=1, train-day=sunday, train-departure=broxbourne, train-destination=cambridge
Response: I found you a seat on TR4658 departing Broxbourne at 15:32, arriving Cambridge at 16:32. The total fee is 14.32 GBP payable at the station, and your reference number is H88LTKWC .