[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 origin_airport=san diego seating_class=dontcare of possible values a) economy b) premium economy c) business airlines=b of possible values a) american airlines b) united airlines c) lot polish airlines d) south african airways e) british airways f) air canada g) alaska airlines h) air france i) latam brasil j) delta airlines k) southwest airlines return_date=11th of this month destination_airport=san francisco number_of_tickets=d of possible values a) 3 b) 1 c) 4 d) 2 [context] [user] i need a premium economy round trip to washington on united airlines
State: [state] departure_date=none origin_airport=none seating_class=b airlines=b return_date=none destination_airport=washington 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] airlines=d of possible values a) alaska airlines b) british airways c) south african airways d) united airlines e) air france f) latam brasil g) southwest airlines h) delta airlines i) lot polish airlines j) air canada k) american airlines destination_airport=san francisco return_date=11th of this month number_of_tickets=b of possible values a) 4 b) 2 c) 3 d) 1 departure_date=next monday seating_class=dontcare of possible values a) economy b) business c) premium economy origin_airport=san diego [context] [user] i need a premium economy round trip to washington on united airlines [system] what date are you departing, and from what city? [user] i'm flying out on the 11th of this month, from ciudad de mexico.
State: [state] airlines=d destination_airport=washington return_date=none number_of_tickets=none departure_date=11th of this month seating_class=c origin_airport=ciudad de mexico

[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] airlines=d of possible values a) lot polish airlines b) british airways c) latam brasil d) united airlines e) alaska airlines f) air canada g) delta airlines h) air france i) southwest airlines j) american airlines k) south african airways departure_date=next monday origin_airport=san diego number_of_tickets=a of possible values a) 2 b) 1 c) 3 d) 4 return_date=11th of this month destination_airport=san francisco seating_class=dontcare of possible values a) economy b) business c) premium economy [context] [user] i need a premium economy round trip to washington on united airlines [system] what date are you departing, and from what city? [user] i'm flying out on the 11th of this month, from ciudad de mexico. [system] what is your return date? [user] i'm coming back on the 13th of march.
State: [state] airlines=d departure_date=11th of this month origin_airport=ciudad de mexico number_of_tickets=none return_date=13th of march destination_airport=washington seating_class=c

[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] return_date=11th of this month seating_class=dontcare of possible values a) business b) premium economy c) economy departure_date=next monday origin_airport=san diego destination_airport=san francisco number_of_tickets=d of possible values a) 4 b) 3 c) 1 d) 2 airlines=f of possible values a) air canada b) delta airlines c) south african airways d) latam brasil e) american airlines f) united airlines g) alaska airlines h) southwest airlines i) british airways j) air france k) lot polish airlines [context] [user] i need a premium economy round trip to washington on united airlines [system] what date are you departing, and from what city? [user] i'm flying out on the 11th of this month, from ciudad de mexico. [system] what is your return date? [user] i'm coming back on the 13th of march. [system] i have a united airlines flight departing at 1:40 am, which is a connecting flight. the return flight departs at 4:35 pm. total cost is $574. [user] okay thanks for the info.
State: [state] return_date=13th of march seating_class=b departure_date=11th of this month origin_airport=ciudad de mexico destination_airport=washington number_of_tickets=none airlines=f

[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=c of possible values a) 3 b) 1 c) 2 d) 4 origin_airport=san diego return_date=11th of this month airlines=g of possible values a) southwest airlines b) south african airways c) lot polish airlines d) latam brasil e) air france f) alaska airlines g) united airlines h) british airways i) american airlines j) air canada 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 premium economy round trip to washington on united airlines [system] what date are you departing, and from what city? [user] i'm flying out on the 11th of this month, from ciudad de mexico. [system] what is your return date? [user] i'm coming back on the 13th of march. [system] i have a united airlines flight departing at 1:40 am, which is a connecting flight. the return flight departs at 4:35 pm. total cost is $574. [user] okay thanks for the info. [system] do you need anything else? [user] no that's it
State: [state] destination_airport=washington number_of_tickets=none origin_airport=ciudad de mexico return_date=13th of march airlines=g departure_date=11th of this month seating_class=c