I'll be happy to look that up for you. What day and time would you like to leave? Will you be traveling to Cambridge? You are speaking to the Cambridge help desk, so we can only book a train if you are leaving from or heading to cambridge. Cambridge to Ely? TR3940 leaves Liverpool St at 19:39 and arrives in Cambridge at 21:07. Will that work for you?
I need a train leaving from london liverpool street. I would like to leave Saturday after 18:30. No I will be going to ely. No, going to cambridge and leaving london liverpool st. I am leaving saturday and want to leave sometime after 18:30 How much will that ticket be?
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "21:07", "departure": "Liverpool St", "destination": "Cambridge", "leave at": "19:39", "trainid": "TR3940"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
{"__type": "Inform", "entity": {"__type": "Train", "price": "13.28 pounds"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
The cost is 13.28 pounds. Would you like to make a reservation?