Okay, where are you departing? Sure I can help with that, the first train leaves ely at 05:35 and the last one runs at 13:35, do you have a particular time in mind?
I'm looking for a train leaving on Wednesday that's going to Cambridge. I'm leaving from ely to cambridge. The last train sounds like it will work best. Can you book me 4 tickets for that one please?
{"__type": "Inform", "entity": {"__type": "Train", "choice": "the last one", "departure": "ely", "leave at": "13:35"}} {"__type": "Request", "service": "train", "values": ["leave at"]}
{"__type": "NotifySuccess", "service": "train", "entity": {"__type": "Train", "price": "17.6 GBP", "ref": "OJUFDKX1"}}
Booked! You'll play 17.6 GBP at the station. Reference number: OJUFDKX1 .