[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] return_date=the 13th departure_date=9th of this month airlines=c of possible values a) southwest airlines b) united airlines c) delta airlines d) british airways e) american airlines f) alaska airlines g) air france h) air canada origin=seattle seating_class=d of possible values a) first class b) business c) premium economy d) economy destination=sf passengers=c of possible values a) 4 b) 3 c) 1 d) 2 [context] [user] i need to find a round trip flight to nyc.
State: [state] return_date=none departure_date=none airlines=none origin=none seating_class=none destination=nyc passengers=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] destination=sf origin=seattle return_date=the 13th airlines=d of possible values a) american airlines b) british airways c) united airlines d) delta airlines e) alaska airlines f) air france g) southwest airlines h) air canada seating_class=b of possible values a) premium economy b) economy c) business d) first class departure_date=9th of this month passengers=c of possible values a) 2 b) 3 c) 1 d) 4 [context] [user] i need to find a round trip flight to nyc. [system] what is the departure city and date? and when would you like to return? [user] i would like to begin travelling day after tomorrow, leaving from atlanta and returning on the 5th
State: [state] destination=nyc origin=atlanta return_date=the 5th airlines=none seating_class=none departure_date=day after tomorrow passengers=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] seating_class=b of possible values a) premium economy b) economy c) first class d) business airlines=a of possible values a) delta airlines b) air canada c) southwest airlines d) alaska airlines e) air france f) british airways g) american airlines h) united airlines passengers=a of possible values a) 1 b) 2 c) 4 d) 3 origin=seattle return_date=the 13th destination=sf departure_date=9th of this month [context] [user] i need to find a round trip flight to nyc. [system] what is the departure city and date? and when would you like to return? [user] i would like to begin travelling day after tomorrow, leaving from atlanta and returning on the 5th [system] there are 4 flights that fit your criteria. does american airlines work? there is a flight leaving at 3:25 pm and returning at 11:45 am with a ticket price of $144 [user] are there additional options?
State: [state] seating_class=none airlines=none passengers=none origin=atlanta return_date=the 5th destination=nyc departure_date=day after tomorrow

[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) business b) premium economy c) first class d) economy return_date=the 13th airlines=d of possible values a) british airways b) air france c) air canada d) delta airlines e) alaska airlines f) southwest airlines g) united airlines h) american airlines departure_date=9th of this month origin=seattle destination=sf passengers=b of possible values a) 3 b) 1 c) 2 d) 4 [context] [user] i need to find a round trip flight to nyc. [system] what is the departure city and date? and when would you like to return? [user] i would like to begin travelling day after tomorrow, leaving from atlanta and returning on the 5th [system] there are 4 flights that fit your criteria. does american airlines work? there is a flight leaving at 3:25 pm and returning at 11:45 am with a ticket price of $144 [user] are there additional options? [system] there is a delta airlines outbound flight that departs at 3:40 pm and the returning flight leaves at 11:25 am, with a ticket price of $125 [user] are there any more? i would like economy tickets from london, uk
State: [state] seating_class=d return_date=the 5th airlines=none departure_date=day after tomorrow origin=london, uk destination=nyc passengers=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] passengers=d of possible values a) 2 b) 4 c) 3 d) 1 departure_date=9th of this month seating_class=a of possible values a) economy b) premium economy c) first class d) business destination=sf return_date=the 13th airlines=c of possible values a) united airlines b) alaska airlines c) delta airlines d) air canada e) air france f) southwest airlines g) american airlines h) british airways origin=seattle [context] [user] i need to find a round trip flight to nyc. [system] what is the departure city and date? and when would you like to return? [user] i would like to begin travelling day after tomorrow, leaving from atlanta and returning on the 5th [system] there are 4 flights that fit your criteria. does american airlines work? there is a flight leaving at 3:25 pm and returning at 11:45 am with a ticket price of $144 [user] are there additional options? [system] there is a delta airlines outbound flight that departs at 3:40 pm and the returning flight leaves at 11:25 am, with a ticket price of $125 [user] are there any more? i would like economy tickets from london, uk [system] there is 1 united airlines flight that matches your needs. the departure flight leaves at 0:25 am and the return flight leaves at 2:40 pm, with a ticket price of $311 [user] great, that's everything for me.
State: [state] passengers=none departure_date=day after tomorrow seating_class=a destination=nyc return_date=the 5th airlines=a origin=london, uk