[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 origin=seattle passengers=d of possible values a) 3 b) 4 c) 2 d) 1 seating_class=c of possible values a) premium economy b) business c) economy d) first class return_date=the 13th destination=sf airlines=c of possible values a) united airlines b) air france c) delta airlines d) american airlines e) british airways f) alaska airlines g) air canada h) southwest airlines [context] [user] i am looking for a round trip flight to chicago on the 10th.
State: [state] departure_date=the 10th origin=none passengers=none seating_class=none return_date=none destination=chicago 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] seating_class=d of possible values a) premium economy b) first class c) business d) economy passengers=c of possible values a) 3 b) 2 c) 1 d) 4 destination=sf departure_date=9th of this month origin=seattle airlines=f of possible values a) british airways b) alaska airlines c) southwest airlines d) american airlines e) united airlines f) delta airlines g) air france h) air canada return_date=the 13th [context] [user] i am looking for a round trip flight to chicago on the 10th. [system] which city do you want to depart from? [user] from seattle, wa.
State: [state] seating_class=none passengers=none destination=chicago departure_date=the 10th origin=seattle, wa airlines=none 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] airlines=b of possible values a) air france b) delta airlines c) british airways d) united airlines e) air canada f) southwest airlines g) american airlines h) alaska airlines passengers=a of possible values a) 1 b) 3 c) 2 d) 4 seating_class=d of possible values a) first class b) business c) premium economy d) economy destination=sf origin=seattle return_date=the 13th departure_date=9th of this month [context] [user] i am looking for a round trip flight to chicago on the 10th. [system] which city do you want to depart from? [user] from seattle, wa. [system] which day do you want to return? [user] on march 12th.
State: [state] airlines=none passengers=none seating_class=none destination=chicago origin=seattle, wa return_date=march 12th departure_date=the 10th

[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 airlines=e of possible values a) southwest airlines b) american airlines c) air france d) alaska airlines e) delta airlines f) british airways g) united airlines h) air canada return_date=the 13th destination=sf seating_class=b of possible values a) first class b) economy c) premium economy d) business origin=seattle passengers=c of possible values a) 4 b) 3 c) 1 d) 2 [context] [user] i am looking for a round trip flight to chicago on the 10th. [system] which city do you want to depart from? [user] from seattle, wa. [system] which day do you want to return? [user] on march 12th. [system] i found 4 flights. how about an american airlines flight that takes off at 4 pm, returns at 7:50 am and costs $251. [user] alright, sounds good.
State: [state] departure_date=the 10th airlines=b return_date=march 12th destination=chicago seating_class=none origin=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] seating_class=a of possible values a) economy b) business c) first class d) premium economy return_date=the 13th passengers=a of possible values a) 1 b) 3 c) 2 d) 4 destination=sf departure_date=9th of this month origin=seattle airlines=h of possible values a) air canada b) air france c) alaska airlines d) british airways e) southwest airlines f) united airlines g) american airlines h) delta airlines [context] [user] i am looking for a round trip flight to chicago on the 10th. [system] which city do you want to depart from? [user] from seattle, wa. [system] which day do you want to return? [user] on march 12th. [system] i found 4 flights. how about an american airlines flight that takes off at 4 pm, returns at 7:50 am and costs $251. [user] alright, sounds good. [system] can i help with anything else? [user] no. thanks for the help.
State: [state] seating_class=none return_date=march 12th passengers=none destination=chicago departure_date=the 10th origin=seattle, wa airlines=g