[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=e of possible values a) air france b) lot polish airlines c) latam brasil d) air canada e) united airlines f) american airlines g) southwest airlines h) british airways i) south african airways j) delta airlines k) alaska airlines origin_airport=san diego number_of_tickets=a of possible values a) 2 b) 1 c) 3 d) 4 seating_class=dontcare of possible values a) economy b) business c) premium economy return_date=11th of this month destination_airport=san francisco departure_date=next monday [context] [user] i need to attend a conference and i wish to go through a flight. will you find a round trip flight?
State: [state] airlines=none origin_airport=none number_of_tickets=none seating_class=none return_date=none destination_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] number_of_tickets=b of possible values a) 1 b) 2 c) 4 d) 3 departure_date=next monday seating_class=dontcare of possible values a) premium economy b) business c) economy destination_airport=san francisco origin_airport=san diego airlines=k of possible values a) american airlines b) air france c) delta airlines d) british airways e) lot polish airlines f) air canada g) south african airways h) alaska airlines i) southwest airlines j) latam brasil k) united airlines return_date=11th of this month [context] [user] i need to attend a conference and i wish to go through a flight. will you find a round trip flight? [system] where are you planning to go? [user] i am planning to go to sfo.
State: [state] number_of_tickets=none departure_date=none seating_class=none destination_airport=sfo origin_airport=none 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=d of possible values a) 1 b) 3 c) 4 d) 2 origin_airport=san diego departure_date=next monday airlines=d of possible values a) british airways b) southwest airlines c) lot polish airlines d) united airlines e) american airlines f) delta airlines g) alaska airlines h) air france i) latam brasil j) air canada k) south african airways return_date=11th of this month destination_airport=san francisco seating_class=dontcare of possible values a) premium economy b) business c) economy [context] [user] i need to attend a conference and i wish to go through a flight. will you find a round trip flight? [system] where are you planning to go? [user] i am planning to go to sfo. [system] at which city you need to depart from? [user] please search from atlanta, ga
State: [state] number_of_tickets=none origin_airport=atlanta, ga departure_date=none airlines=none return_date=none destination_airport=sfo 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] destination_airport=san francisco origin_airport=san diego number_of_tickets=a of possible values a) 2 b) 4 c) 1 d) 3 departure_date=next monday seating_class=dontcare of possible values a) premium economy b) economy c) business airlines=i of possible values a) southwest airlines b) british airways c) alaska airlines d) delta airlines e) air canada f) south african airways g) lot polish airlines h) air france i) united airlines j) american airlines k) latam brasil return_date=11th of this month [context] [user] i need to attend a conference and i wish to go through a flight. will you find a round trip flight? [system] where are you planning to go? [user] i am planning to go to sfo. [system] at which city you need to depart from? [user] please search from atlanta, ga [system] in which day do you wish to take the return flight? [user] i wish to return on march 14th.
State: [state] destination_airport=sfo origin_airport=atlanta, ga number_of_tickets=none departure_date=none seating_class=none airlines=none return_date=march 14th

[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=c of possible values a) 4 b) 1 c) 2 d) 3 destination_airport=san francisco airlines=f of possible values a) air france b) lot polish airlines c) south african airways d) latam brasil e) southwest airlines f) united airlines g) british airways h) alaska airlines i) delta airlines j) american airlines k) air canada return_date=11th of this month origin_airport=san diego seating_class=dontcare of possible values a) premium economy b) business c) economy [context] [user] i need to attend a conference and i wish to go through a flight. will you find a round trip flight? [system] where are you planning to go? [user] i am planning to go to sfo. [system] at which city you need to depart from? [user] please search from atlanta, ga [system] in which day do you wish to take the return flight? [user] i wish to return on march 14th. [system] at which date you wish to start your travel ? [user] i want to start my travel on day after tomorrow.
State: [state] departure_date=day after tomorrow number_of_tickets=none destination_airport=sfo airlines=none return_date=march 14th origin_airport=atlanta, ga 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] destination_airport=san francisco seating_class=dontcare of possible values a) premium economy b) economy c) business airlines=j of possible values a) british airways b) delta airlines c) south african airways d) alaska airlines e) latam brasil f) air canada g) lot polish airlines h) american airlines i) southwest airlines j) united airlines k) air france departure_date=next monday number_of_tickets=b of possible values a) 4 b) 2 c) 1 d) 3 return_date=11th of this month origin_airport=san diego [context] [user] i need to attend a conference and i wish to go through a flight. will you find a round trip flight? [system] where are you planning to go? [user] i am planning to go to sfo. [system] at which city you need to depart from? [user] please search from atlanta, ga [system] in which day do you wish to take the return flight? [user] i wish to return on march 14th. [system] at which date you wish to start your travel ? [user] i want to start my travel on day after tomorrow. [system] i found 4 flights as per your need. what about american airlines? the flight takes off at 3:45 pm. it is a direct flight and the returning flight takes off at 9:20 pm. and the ticket cost is $313. [user] ok that sounds good. that's all i need.
State: [state] destination_airport=sfo seating_class=none airlines=none departure_date=day after tomorrow number_of_tickets=none return_date=march 14th origin_airport=atlanta, ga