[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 number_of_tickets=d of possible values a) 4 b) 1 c) 3 d) 2 airlines=b of possible values a) southwest airlines b) united airlines c) alaska airlines d) delta airlines e) air france f) british airways g) air canada h) lot polish airlines i) american airlines j) south african airways k) latam brasil origin_airport=san diego return_date=11th of this month seating_class=dontcare of possible values a) economy b) premium economy c) business destination_airport=san francisco [context] [user] i need a round trip flight.
State: [state] departure_date=none number_of_tickets=none airlines=none origin_airport=none return_date=none seating_class=none destination_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) premium economy c) business number_of_tickets=a of possible values a) 2 b) 3 c) 4 d) 1 return_date=11th of this month airlines=i of possible values a) lot polish airlines b) air france c) american airlines d) air canada e) alaska airlines f) delta airlines g) south african airways h) latam brasil i) united airlines j) southwest airlines k) british airways destination_airport=san francisco origin_airport=san diego [context] [user] i need a round trip flight. [system] what do would you like it on? what city are you coming from? [user] i'm leaving from philadelphia and coming back on the 7th.
State: [state] departure_date=none seating_class=none number_of_tickets=none return_date=the 7th airlines=none destination_airport=none origin_airport=philadelphia

[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 origin_airport=san diego number_of_tickets=c of possible values a) 3 b) 1 c) 2 d) 4 return_date=11th of this month airlines=d of possible values a) american airlines b) latam brasil c) british airways d) united airlines e) alaska airlines f) air france g) southwest airlines h) air canada i) south african airways j) lot polish airlines k) delta airlines departure_date=next monday seating_class=dontcare of possible values a) economy b) business c) premium economy [context] [user] i need a round trip flight. [system] what do would you like it on? what city are you coming from? [user] i'm leaving from philadelphia and coming back on the 7th. [system] where are you going? what date are you going? [user] i'm leaving next tuesday. i wanna go to nyc. i'm fine with any class.
State: [state] destination_airport=nyc origin_airport=philadelphia number_of_tickets=none return_date=the 7th airlines=none departure_date=next tuesday seating_class=dontcare

[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) 4 b) 3 c) 2 d) 1 return_date=11th of this month airlines=g of possible values a) british airways b) southwest airlines c) air france d) latam brasil e) alaska airlines f) air canada g) united airlines h) south african airways i) lot polish airlines j) delta airlines k) american airlines destination_airport=san francisco seating_class=dontcare of possible values a) premium economy b) economy c) business origin_airport=san diego departure_date=next monday [context] [user] i need a round trip flight. [system] what do would you like it on? what city are you coming from? [user] i'm leaving from philadelphia and coming back on the 7th. [system] where are you going? what date are you going? [user] i'm leaving next tuesday. i wanna go to nyc. i'm fine with any class. [system] there are 4 flights for you. is american airlines okay? one flight takes off at 3:20 pm with the returning flight at 1:35 pm. the tick would cost $162. [user] that's good. thank you. that's all.
State: [state] number_of_tickets=none return_date=the 7th airlines=none destination_airport=nyc seating_class=dontcare origin_airport=philadelphia departure_date=next tuesday