[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=a of possible values a) true b) false number_of_adults=e of possible values a) 3 b) 4 c) 5 d) 2 e) 1 journey_start_time=9:40 am date_of_journey=march 6th to=chicago from=washington class=c of possible values a) business b) value c) flexible [context] [user] i need a train with economy premium ticket for 1 person on 6th of this month.
State: [state] trip_protection=none number_of_adults=e journey_start_time=none date_of_journey=6th of this month to=none from=none class=c

[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=b of possible values a) business b) flexible c) value journey_start_time=9:40 am trip_protection=b of possible values a) false b) true number_of_adults=c of possible values a) 3 b) 2 c) 1 d) 5 e) 4 date_of_journey=march 6th to=chicago from=washington [context] [user] i need a train with economy premium ticket for 1 person on 6th of this month. [system] which is your preferred city? [user] i wish to go to portland.
State: [state] class=b journey_start_time=none trip_protection=none number_of_adults=c date_of_journey=6th of this month to=portland from=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 trip_protection=a of possible values a) true b) false from=washington date_of_journey=march 6th to=chicago number_of_adults=d of possible values a) 4 b) 5 c) 2 d) 1 e) 3 class=a of possible values a) flexible b) value c) business [context] [user] i need a train with economy premium ticket for 1 person on 6th of this month. [system] which is your preferred city? [user] i wish to go to portland. [system] from which do you want to go? [user] i need tickets from vancouver, bc on 1st of march.
State: [state] journey_start_time=none trip_protection=none from=vancouver, bc date_of_journey=1st of march to=portland number_of_adults=d class=a

[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=d of possible values a) 4 b) 3 c) 2 d) 1 e) 5 date_of_journey=march 6th class=b of possible values a) value b) flexible c) business from=washington to=chicago journey_start_time=9:40 am trip_protection=a of possible values a) true b) false [context] [user] i need a train with economy premium ticket for 1 person on 6th of this month. [system] which is your preferred city? [user] i wish to go to portland. [system] from which do you want to go? [user] i need tickets from vancouver, bc on 1st of march. [system] starting at 6:50 am. the price is $91. [user] is there any other options available?
State: [state] number_of_adults=d date_of_journey=1st of march class=b from=vancouver, bc to=portland journey_start_time=none 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] date_of_journey=march 6th journey_start_time=9:40 am from=washington number_of_adults=b of possible values a) 2 b) 1 c) 4 d) 5 e) 3 to=chicago trip_protection=a of possible values a) true b) false class=c of possible values a) value b) business c) flexible [context] [user] i need a train with economy premium ticket for 1 person on 6th of this month. [system] which is your preferred city? [user] i wish to go to portland. [system] from which do you want to go? [user] i need tickets from vancouver, bc on 1st of march. [system] starting at 6:50 am. the price is $91. [user] is there any other options available? [system] starting at 8:10 am. the price is $95. [user] it is good. that is what i want.
State: [state] date_of_journey=1st of march journey_start_time=8:10 am from=vancouver, bc number_of_adults=b to=portland trip_protection=none class=c