There are many options available to you. What destination did you have in mind?
Yes, I need assistance with finding a train for my trip. I need to get to Cambridge and I'll be departing from Ely on Monday.
{"__type": "Inform", "entity": {"__type": "Train", "choice": "many"}} {"__type": "Request", "service": "train", "values": ["destination"]}
{"__type": "Inform", "entity": {"__type": "Train", "choice": "many"}} {"__type": "Request", "service": "train", "values": ["leave at"]}
We have many options available to you. Is there a certain time you are wanting to leave?