I can certainly help with that. Where are you departing from on Saturday?
I am looking for a train this Saturday. Can you help? I want to go to Cambridge from london liverpool street, I'd like to arrive by 17:15.
{"__type": "Inform", "entity": {"__type": "Train", "day": "Saturday"}} {"__type": "Request", "service": "train", "values": ["departure"]}
{"__type": "Inform", "entity": {"__type": "Train", "choice": "7"}} {"__type": "Request", "service": "train", "values": ["leave at"]}
I have 7 trains available. What time would you like to depart?