[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] class=a of possible values a) flexible b) business c) value from=washington number_of_adults=d of possible values a) 4 b) 2 c) 5 d) 1 e) 3 trip_protection=b of possible values a) false b) true journey_start_time=9:40 am date_of_journey=march 6th to=chicago [context] [user] will you find me a train?
State: [state] class=none from=none number_of_adults=none trip_protection=none journey_start_time=none date_of_journey=none to=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] class=a of possible values a) flexible b) value c) business number_of_adults=c of possible values a) 3 b) 5 c) 1 d) 2 e) 4 date_of_journey=march 6th from=washington journey_start_time=9:40 am trip_protection=b of possible values a) false b) true to=chicago [context] [user] will you find me a train? [system] which date would you like to travel and to which city? [user] get me tickets for the 10th of march to washington.
State: [state] class=none number_of_adults=none date_of_journey=10th of march from=none journey_start_time=none trip_protection=none to=washington

[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] date_of_journey=march 6th class=c of possible values a) value b) business c) flexible trip_protection=b of possible values a) false b) true to=chicago journey_start_time=9:40 am number_of_adults=e of possible values a) 2 b) 5 c) 3 d) 4 e) 1 from=washington [context] [user] will you find me a train? [system] which date would you like to travel and to which city? [user] get me tickets for the 10th of march to washington. [system] what city will you depart from? [user] i need tickets from ny.
State: [state] date_of_journey=10th of march class=none trip_protection=none to=washington journey_start_time=none number_of_adults=none from=ny

[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=a of possible values a) 1 b) 2 c) 4 d) 5 e) 3 from=washington journey_start_time=9:40 am class=b of possible values a) business b) flexible c) value to=chicago date_of_journey=march 6th trip_protection=b of possible values a) false b) true [context] [user] will you find me a train? [system] which date would you like to travel and to which city? [user] get me tickets for the 10th of march to washington. [system] what city will you depart from? [user] i need tickets from ny. [system] i'm leaving at 7:20 am costing $65 total. [user] will there be other trains that work?
State: [state] number_of_adults=none from=ny journey_start_time=none class=none to=washington date_of_journey=10th of march trip_protection=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] journey_start_time=9:40 am from=washington number_of_adults=a of possible values a) 1 b) 2 c) 3 d) 5 e) 4 class=a of possible values a) flexible b) value c) business date_of_journey=march 6th trip_protection=a of possible values a) true b) false to=chicago [context] [user] will you find me a train? [system] which date would you like to travel and to which city? [user] get me tickets for the 10th of march to washington. [system] what city will you depart from? [user] i need tickets from ny. [system] i'm leaving at 7:20 am costing $65 total. [user] will there be other trains that work? [system] leaving at 8:20 am costing $72 total. [user] that is great.
State: [state] journey_start_time=8:20 am from=ny number_of_adults=none class=none date_of_journey=10th of march trip_protection=none to=washington

[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] date_of_journey=march 6th number_of_adults=e of possible values a) 5 b) 4 c) 3 d) 2 e) 1 journey_start_time=9:40 am class=b of possible values a) value b) flexible c) business from=washington to=chicago trip_protection=a of possible values a) true b) false [context] [user] will you find me a train? [system] which date would you like to travel and to which city? [user] get me tickets for the 10th of march to washington. [system] what city will you depart from? [user] i need tickets from ny. [system] i'm leaving at 7:20 am costing $65 total. [user] will there be other trains that work? [system] leaving at 8:20 am costing $72 total. [user] that is great. [system] would you like me to book tickets? [user] no, i don't want to book tickets right now that is all that is needed.
State: [state] date_of_journey=10th of march number_of_adults=none journey_start_time=8:20 am class=none from=ny to=washington trip_protection=none