[example] [user] i am looking for a flight from seattle that return on the 13th. [system] where are you planning to go? what date would you like to travel? [user] i am flying to sf on the 9th of this month and want one economy class ticket. [system] i found 3 flights for you. would you like to fly with delta airlines? the flight takes off at 6:10 am and returns 8 am. the ticket costs $131. [user] ok. [slots] destination=sf airlines=e of possible values a) air france b) united airlines c) air canada d) southwest airlines e) delta airlines f) alaska airlines g) british airways h) american airlines return_date=the 13th passengers=b of possible values a) 4 b) 1 c) 3 d) 2 origin=seattle seating_class=d of possible values a) first class b) premium economy c) business d) economy departure_date=9th of this month [context] [user] i'm looking for a flight.
State: [state] destination=none airlines=none return_date=none passengers=none origin=none seating_class=none departure_date=none

[example] [user] i am looking for a flight from seattle that return on the 13th. [system] where are you planning to go? what date would you like to travel? [user] i am flying to sf on the 9th of this month and want one economy class ticket. [system] i found 3 flights for you. would you like to fly with delta airlines? the flight takes off at 6:10 am and returns 8 am. the ticket costs $131. [user] ok. [slots] airlines=b of possible values a) air canada b) delta airlines c) american airlines d) british airways e) alaska airlines f) southwest airlines g) air france h) united airlines destination=sf origin=seattle passengers=c of possible values a) 2 b) 4 c) 1 d) 3 seating_class=b of possible values a) business b) economy c) premium economy d) first class departure_date=9th of this month return_date=the 13th [context] [user] i'm looking for a flight. [system] when would you want the return flight to happen? from which city are you departing? what is your intended destination? [user] i'm leaving san fran, and i'm going to portland, or. i want to leave on march 5th and return on thursday next week.
State: [state] airlines=none destination=portland, or origin=san fran passengers=none seating_class=none departure_date=march 5th return_date=thursday next week

[example] [user] i am looking for a flight from seattle that return on the 13th. [system] where are you planning to go? what date would you like to travel? [user] i am flying to sf on the 9th of this month and want one economy class ticket. [system] i found 3 flights for you. would you like to fly with delta airlines? the flight takes off at 6:10 am and returns 8 am. the ticket costs $131. [user] ok. [slots] departure_date=9th of this month passengers=b of possible values a) 4 b) 1 c) 3 d) 2 origin=seattle seating_class=b of possible values a) business b) economy c) first class d) premium economy return_date=the 13th airlines=g of possible values a) american airlines b) southwest airlines c) alaska airlines d) united airlines e) air canada f) air france g) delta airlines h) british airways destination=sf [context] [user] i'm looking for a flight. [system] when would you want the return flight to happen? from which city are you departing? what is your intended destination? [user] i'm leaving san fran, and i'm going to portland, or. i want to leave on march 5th and return on thursday next week. [system] there is an alaska airlines flight on march 5th that returns on thursday next week. it takes off at 12:20 pm and the returning flight takes off at 7:55 am. the ticket costs $121. [user] is the ticket premium economy?
State: [state] departure_date=march 5th passengers=none origin=san fran seating_class=none return_date=thursday next week airlines=none destination=portland, or

[example] [user] i am looking for a flight from seattle that return on the 13th. [system] where are you planning to go? what date would you like to travel? [user] i am flying to sf on the 9th of this month and want one economy class ticket. [system] i found 3 flights for you. would you like to fly with delta airlines? the flight takes off at 6:10 am and returns 8 am. the ticket costs $131. [user] ok. [slots] seating_class=d of possible values a) first class b) business c) premium economy d) economy destination=sf airlines=b of possible values a) united airlines b) delta airlines c) southwest airlines d) american airlines e) alaska airlines f) air france g) british airways h) air canada origin=seattle return_date=the 13th passengers=a of possible values a) 1 b) 4 c) 3 d) 2 departure_date=9th of this month [context] [user] i'm looking for a flight. [system] when would you want the return flight to happen? from which city are you departing? what is your intended destination? [user] i'm leaving san fran, and i'm going to portland, or. i want to leave on march 5th and return on thursday next week. [system] there is an alaska airlines flight on march 5th that returns on thursday next week. it takes off at 12:20 pm and the returning flight takes off at 7:55 am. the ticket costs $121. [user] is the ticket premium economy? [system] its an economy seat. [user] ok. i'll take that.
State: [state] seating_class=none destination=portland, or airlines=e origin=san fran return_date=thursday next week passengers=none departure_date=march 5th

[example] [user] i am looking for a flight from seattle that return on the 13th. [system] where are you planning to go? what date would you like to travel? [user] i am flying to sf on the 9th of this month and want one economy class ticket. [system] i found 3 flights for you. would you like to fly with delta airlines? the flight takes off at 6:10 am and returns 8 am. the ticket costs $131. [user] ok. [slots] origin=seattle seating_class=a of possible values a) economy b) premium economy c) first class d) business return_date=the 13th destination=sf passengers=c of possible values a) 4 b) 2 c) 1 d) 3 airlines=f of possible values a) united airlines b) air canada c) air france d) alaska airlines e) british airways f) delta airlines g) southwest airlines h) american airlines departure_date=9th of this month [context] [user] i'm looking for a flight. [system] when would you want the return flight to happen? from which city are you departing? what is your intended destination? [user] i'm leaving san fran, and i'm going to portland, or. i want to leave on march 5th and return on thursday next week. [system] there is an alaska airlines flight on march 5th that returns on thursday next week. it takes off at 12:20 pm and the returning flight takes off at 7:55 am. the ticket costs $121. [user] is the ticket premium economy? [system] its an economy seat. [user] ok. i'll take that. [system] would you like some help with another flight? [user] no, but thanks.
State: [state] origin=san fran seating_class=none return_date=thursday next week destination=portland, or passengers=none airlines=d departure_date=march 5th