[example] [user] i would like to find a train. [system] where are you departing from and what is your destination? [user] i'm leaving washington to chicago on march 6th. [system] there are 5 trains. there is one leaving at 9:40 am for $109. [user] i would like to purchase one ticket. flexible ticket, and add travel insurance. [slots] to=chicago class=b of possible values a) business b) flexible c) value number_of_adults=e of possible values a) 2 b) 5 c) 4 d) 3 e) 1 trip_protection=b of possible values a) false b) true date_of_journey=march 6th from=washington journey_start_time=9:40 am [context] [user] i'm going to san diego to visit family soon and need help finding a train ticket.
State: [state] to=san diego class=none number_of_adults=none trip_protection=none date_of_journey=none from=none journey_start_time=none

[example] [user] i would like to find a train. [system] where are you departing from and what is your destination? [user] i'm leaving washington to chicago on march 6th. [system] there are 5 trains. there is one leaving at 9:40 am for $109. [user] i would like to purchase one ticket. flexible ticket, and add travel insurance. [slots] number_of_adults=b of possible values a) 2 b) 1 c) 3 d) 5 e) 4 trip_protection=a of possible values a) true b) false date_of_journey=march 6th class=b of possible values a) value b) flexible c) business to=chicago journey_start_time=9:40 am from=washington [context] [user] i'm going to san diego to visit family soon and need help finding a train ticket. [system] i can help with that but can you first tell me where you will be departing from? [user] i would like to leave sacramento on march 3rd if possible.
State: [state] number_of_adults=none trip_protection=none date_of_journey=march 3rd class=none to=san diego journey_start_time=none from=sacramento

[example] [user] i would like to find a train. [system] where are you departing from and what is your destination? [user] i'm leaving washington to chicago on march 6th. [system] there are 5 trains. there is one leaving at 9:40 am for $109. [user] i would like to purchase one ticket. flexible ticket, and add travel insurance. [slots] trip_protection=b of possible values a) false b) true date_of_journey=march 6th class=c of possible values a) business b) value c) flexible from=washington number_of_adults=a of possible values a) 1 b) 2 c) 5 d) 4 e) 3 journey_start_time=9:40 am to=chicago [context] [user] i'm going to san diego to visit family soon and need help finding a train ticket. [system] i can help with that but can you first tell me where you will be departing from? [user] i would like to leave sacramento on march 3rd if possible. [system] i was able to locate one train, leaving at 6:30 am for $142, does that interest you? [user] perfect, that's what i'm looking for.
State: [state] trip_protection=none date_of_journey=march 3rd class=none from=sacramento number_of_adults=none journey_start_time=6:30 am to=san diego