There are 70 trains do you have a date and time you'd like to go?
I am looking for a train from ely to cambridge. Do you have such trains? I would like to leave on a sunday and arrive by 11:30.
{"__type": "Inform", "entity": {"__type": "Train", "choice": "70"}} {"__type": "Request", "service": "train", "values": ["day", "leave at"]}
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "9:52", "trainid": "TR4212"}}
TR4212 is arriving at 9:52 would that work for you?