[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=g of possible values a) american airlines b) southwest airlines c) alaska airlines d) british airways e) united airlines f) air france g) delta airlines h) air canada passengers=a of possible values a) 1 b) 4 c) 2 d) 3 return_date=the 13th seating_class=b of possible values a) business b) economy c) first class d) premium economy destination=sf origin=seattle departure_date=9th of this month [context] [user] i'd like a one way economy class ticket flight.
State: [state] airlines=none passengers=none return_date=none seating_class=b destination=none origin=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] destination=sf seating_class=b of possible values a) premium economy b) economy c) first class d) business origin=seattle passengers=c of possible values a) 4 b) 3 c) 1 d) 2 departure_date=9th of this month return_date=the 13th airlines=e of possible values a) american airlines b) alaska airlines c) air canada d) southwest airlines e) delta airlines f) air france g) british airways h) united airlines [context] [user] i'd like a one way economy class ticket flight. [system] which date do you want to travel? [user] i'd like to start travelling on march 13th.
State: [state] destination=none seating_class=b origin=none passengers=none departure_date=march 13th return_date=none airlines=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=e of possible values a) british airways b) air canada c) american airlines d) air france e) delta airlines f) united airlines g) southwest airlines h) alaska airlines departure_date=9th of this month origin=seattle return_date=the 13th seating_class=c of possible values a) business b) first class c) economy d) premium economy passengers=d of possible values a) 4 b) 2 c) 3 d) 1 destination=sf [context] [user] i'd like a one way economy class ticket flight. [system] which date do you want to travel? [user] i'd like to start travelling on march 13th. [system] which city would you like to leave from? [user] i'd like to fly air france from paris.
State: [state] airlines=d departure_date=march 13th origin=paris return_date=none seating_class=c passengers=none destination=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=d of possible values a) business b) premium economy c) first class d) economy origin=seattle departure_date=9th of this month return_date=the 13th airlines=f of possible values a) air france b) alaska airlines c) british airways d) american airlines e) united airlines f) delta airlines g) southwest airlines h) air canada destination=sf passengers=d of possible values a) 3 b) 4 c) 2 d) 1 [context] [user] i'd like a one way economy class ticket flight. [system] which date do you want to travel? [user] i'd like to start travelling on march 13th. [system] which city would you like to leave from? [user] i'd like to fly air france from paris. [system] where'd you like to go? [user] i'd like to fly to seattle, wa.
State: [state] seating_class=d origin=paris departure_date=march 13th return_date=none airlines=a destination=seattle, wa 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] origin=seattle seating_class=a of possible values a) economy b) business c) premium economy d) first class passengers=b of possible values a) 3 b) 1 c) 4 d) 2 destination=sf airlines=a of possible values a) delta airlines b) alaska airlines c) american airlines d) british airways e) united airlines f) southwest airlines g) air france h) air canada departure_date=9th of this month return_date=the 13th [context] [user] i'd like a one way economy class ticket flight. [system] which date do you want to travel? [user] i'd like to start travelling on march 13th. [system] which city would you like to leave from? [user] i'd like to fly air france from paris. [system] where'd you like to go? [user] i'd like to fly to seattle, wa. [system] do you want to fly air france that leaves at 3:55 am and has 1 stop? the cost is $399. [user] which airport is the flight from, and is it a redeye flight?
State: [state] origin=paris seating_class=a passengers=none destination=seattle, wa airlines=g departure_date=march 13th return_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] return_date=the 13th origin=seattle passengers=c of possible values a) 4 b) 2 c) 1 d) 3 departure_date=9th of this month airlines=f of possible values a) air canada b) british airways c) alaska airlines d) american airlines e) southwest airlines f) delta airlines g) united airlines h) air france seating_class=d of possible values a) business b) premium economy c) first class d) economy destination=sf [context] [user] i'd like a one way economy class ticket flight. [system] which date do you want to travel? [user] i'd like to start travelling on march 13th. [system] which city would you like to leave from? [user] i'd like to fly air france from paris. [system] where'd you like to go? [user] i'd like to fly to seattle, wa. [system] do you want to fly air france that leaves at 3:55 am and has 1 stop? the cost is $399. [user] which airport is the flight from, and is it a redeye flight? [system] the flight isn't overnight and it leaves from charles de gaulle international airport. [user] ok. that will be all i need.
State: [state] return_date=none origin=paris passengers=none departure_date=march 13th airlines=h seating_class=d destination=seattle, wa