There are 202 trains to cambridge on monday. Can you tell me your departure station and the time you'd like to travel? There are 3 trains available. What is your departure time?
Yes, I would like to book a train that is leaving Monday, and is going to Cambridge. I want to depart from bishops stortford and arrive to cambridge by 12:00. Whichever departure is closest to the arrival would be the best.
{"__type": "Inform", "entity": {"__type": "Train", "choice": "3"}} {"__type": "Request", "service": "train", "values": ["leave at"]}
{"__type": "Inform", "entity": {"__type": "Train", "trainid": "TR0757"}}
TR0757 seems to be the best. Let's go with that.