[example] [user] i would like to get two tickets on a round trip flight that will get me to san francisco from san diego. [system] will you be leaving on march 2nd? [user] i would like to leave next monday. [system] what day do you want your return flight to be? [user] i would like to fly with united airlines and come back on the 11th of this month. i have no preference about which ticket class it is. [slots] departure_date=next monday seating_class=dontcare of possible values a) economy b) business c) premium economy return_date=11th of this month airlines=e of possible values a) lot polish airlines b) british airways c) air canada d) latam brasil e) united airlines f) american airlines g) delta airlines h) southwest airlines i) alaska airlines j) south african airways k) air france destination_airport=san francisco number_of_tickets=d of possible values a) 1 b) 4 c) 3 d) 2 origin_airport=san diego [context] [user] i would like to find a round trip flight.
State: [state] departure_date=none seating_class=none return_date=none airlines=none destination_airport=none number_of_tickets=none origin_airport=none

[example] [user] i would like to get two tickets on a round trip flight that will get me to san francisco from san diego. [system] will you be leaving on march 2nd? [user] i would like to leave next monday. [system] what day do you want your return flight to be? [user] i would like to fly with united airlines and come back on the 11th of this month. i have no preference about which ticket class it is. [slots] departure_date=next monday seating_class=dontcare of possible values a) economy b) business c) premium economy origin_airport=san diego number_of_tickets=a of possible values a) 2 b) 3 c) 4 d) 1 destination_airport=san francisco airlines=k of possible values a) southwest airlines b) latam brasil c) south african airways d) american airlines e) air france f) lot polish airlines g) air canada h) alaska airlines i) british airways j) delta airlines k) united airlines return_date=11th of this month [context] [user] i would like to find a round trip flight. [system] what is the date you are wanting to travel. which city do you want to leave from and where do you want to go? [user] i would like to leave on the 8th, departing from berlin and going to nyc.
State: [state] departure_date=the 8th seating_class=none origin_airport=berlin number_of_tickets=none destination_airport=nyc airlines=none return_date=none

[example] [user] i would like to get two tickets on a round trip flight that will get me to san francisco from san diego. [system] will you be leaving on march 2nd? [user] i would like to leave next monday. [system] what day do you want your return flight to be? [user] i would like to fly with united airlines and come back on the 11th of this month. i have no preference about which ticket class it is. [slots] number_of_tickets=c of possible values a) 3 b) 1 c) 2 d) 4 origin_airport=san diego departure_date=next monday return_date=11th of this month airlines=d of possible values a) delta airlines b) south african airways c) air france d) united airlines e) southwest airlines f) air canada g) british airways h) alaska airlines i) american airlines j) latam brasil k) lot polish airlines seating_class=dontcare of possible values a) business b) economy c) premium economy destination_airport=san francisco [context] [user] i would like to find a round trip flight. [system] what is the date you are wanting to travel. which city do you want to leave from and where do you want to go? [user] i would like to leave on the 8th, departing from berlin and going to nyc. [system] what is the day you want the return flight to be? [user] i am coming back on march 12th.
State: [state] number_of_tickets=none origin_airport=berlin departure_date=the 8th return_date=march 12th airlines=none seating_class=none destination_airport=nyc

[example] [user] i would like to get two tickets on a round trip flight that will get me to san francisco from san diego. [system] will you be leaving on march 2nd? [user] i would like to leave next monday. [system] what day do you want your return flight to be? [user] i would like to fly with united airlines and come back on the 11th of this month. i have no preference about which ticket class it is. [slots] departure_date=next monday airlines=b of possible values a) air france b) united airlines c) lot polish airlines d) american airlines e) southwest airlines f) air canada g) south african airways h) delta airlines i) british airways j) latam brasil k) alaska airlines return_date=11th of this month number_of_tickets=c of possible values a) 4 b) 3 c) 2 d) 1 seating_class=dontcare of possible values a) business b) premium economy c) economy origin_airport=san diego destination_airport=san francisco [context] [user] i would like to find a round trip flight. [system] what is the date you are wanting to travel. which city do you want to leave from and where do you want to go? [user] i would like to leave on the 8th, departing from berlin and going to nyc. [system] what is the day you want the return flight to be? [user] i am coming back on march 12th. [system] what do you think of flying with american airlines? this flight will leave at 1:35 am and it's a direct flight. the return flight leaves at 4:45 pm and the price is $374. [user] that sounds fine. thanks very much, that's all i wanted.
State: [state] departure_date=the 8th airlines=none return_date=march 12th number_of_tickets=none seating_class=none origin_airport=berlin destination_airport=nyc