[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] destination_airport=san francisco number_of_tickets=a of possible values a) 2 b) 3 c) 4 d) 1 seating_class=dontcare of possible values a) premium economy b) business c) economy airlines=i of possible values a) delta airlines b) air france c) lot polish airlines d) southwest airlines e) alaska airlines f) latam brasil g) american airlines h) air canada i) united airlines j) british airways k) south african airways return_date=11th of this month origin_airport=san diego departure_date=next monday [context] [user] i'm looking for a one way flight ticket.
State: [state] destination_airport=none number_of_tickets=none seating_class=none airlines=none return_date=none origin_airport=none departure_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] origin_airport=san diego seating_class=dontcare of possible values a) business b) economy c) premium economy departure_date=next monday airlines=f of possible values a) delta airlines b) air france c) southwest airlines d) latam brasil e) american airlines f) united airlines g) lot polish airlines h) south african airways i) air canada j) british airways k) alaska airlines return_date=11th of this month destination_airport=san francisco number_of_tickets=d of possible values a) 1 b) 4 c) 3 d) 2 [context] [user] i'm looking for a one way flight ticket. [system] where are you traveling to? [user] i'm going to berlin.
State: [state] origin_airport=none seating_class=none departure_date=none airlines=none return_date=none destination_airport=berlin number_of_tickets=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 return_date=11th of this month origin_airport=san diego seating_class=dontcare of possible values a) economy b) business c) premium economy destination_airport=san francisco airlines=b of possible values a) alaska airlines b) united airlines c) lot polish airlines d) latam brasil e) southwest airlines f) air canada g) delta airlines h) south african airways i) american airlines j) british airways k) air france number_of_tickets=a of possible values a) 2 b) 4 c) 3 d) 1 [context] [user] i'm looking for a one way flight ticket. [system] where are you traveling to? [user] i'm going to berlin. [system] what date would you like to travel on? [user] i'm leaving on the 1st of march.
State: [state] departure_date=1st of march return_date=none origin_airport=none seating_class=none destination_airport=berlin airlines=none number_of_tickets=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=b of possible values a) 1 b) 2 c) 3 d) 4 return_date=11th of this month airlines=c of possible values a) latam brasil b) air canada c) united airlines d) south african airways e) alaska airlines f) southwest airlines g) american airlines h) air france i) lot polish airlines j) delta airlines k) british airways departure_date=next monday destination_airport=san francisco origin_airport=san diego seating_class=dontcare of possible values a) business b) economy c) premium economy [context] [user] i'm looking for a one way flight ticket. [system] where are you traveling to? [user] i'm going to berlin. [system] what date would you like to travel on? [user] i'm leaving on the 1st of march. [system] where are you departing from? [user] i'm looking for a flight from chi-town.
State: [state] number_of_tickets=none return_date=none airlines=none departure_date=1st of march destination_airport=berlin origin_airport=chi-town seating_class=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=a of possible values a) 2 b) 3 c) 4 d) 1 origin_airport=san diego seating_class=dontcare of possible values a) business b) economy c) premium economy return_date=11th of this month departure_date=next monday airlines=c of possible values a) air france b) air canada c) united airlines d) southwest airlines e) american airlines f) delta airlines g) alaska airlines h) lot polish airlines i) british airways j) south african airways k) latam brasil destination_airport=san francisco [context] [user] i'm looking for a one way flight ticket. [system] where are you traveling to? [user] i'm going to berlin. [system] what date would you like to travel on? [user] i'm leaving on the 1st of march. [system] where are you departing from? [user] i'm looking for a flight from chi-town. [system] i found 4 flights for you. there is a connecting american airlines flight departing at 4:35 pm for $407. [user] that works for me.
State: [state] number_of_tickets=none origin_airport=chi-town seating_class=none return_date=none departure_date=1st of march airlines=none destination_airport=berlin

[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] destination_airport=san francisco departure_date=next monday airlines=c of possible values a) latam brasil b) british airways c) united airlines d) lot polish airlines e) alaska airlines f) air france g) air canada h) american airlines i) south african airways j) delta airlines k) southwest airlines seating_class=dontcare of possible values a) economy b) business c) premium economy origin_airport=san diego number_of_tickets=c of possible values a) 3 b) 4 c) 2 d) 1 return_date=11th of this month [context] [user] i'm looking for a one way flight ticket. [system] where are you traveling to? [user] i'm going to berlin. [system] what date would you like to travel on? [user] i'm leaving on the 1st of march. [system] where are you departing from? [user] i'm looking for a flight from chi-town. [system] i found 4 flights for you. there is a connecting american airlines flight departing at 4:35 pm for $407. [user] that works for me. [system] is there anything else i can help you with? [user] no, thank you.
State: [state] destination_airport=berlin departure_date=1st of march airlines=none seating_class=none origin_airport=chi-town number_of_tickets=none return_date=none