[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 airlines=c of possible values a) american airlines b) air canada c) delta airlines d) united airlines e) southwest airlines f) british airways g) alaska airlines h) air france passengers=b of possible values a) 4 b) 1 c) 3 d) 2 departure_date=9th of this month seating_class=b of possible values a) business b) economy c) first class d) premium economy destination=sf origin=seattle [context] [user] i want a one way flight ticket.
State: [state] return_date=none airlines=none passengers=none departure_date=none seating_class=none destination=none origin=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 airlines=d of possible values a) british airways b) air canada c) united airlines d) delta airlines e) air france f) alaska airlines g) southwest airlines h) american airlines seating_class=b of possible values a) first class b) economy c) premium economy d) business return_date=the 13th departure_date=9th of this month passengers=b of possible values a) 2 b) 1 c) 4 d) 3 origin=seattle [context] [user] i want a one way flight ticket. [system] where do you want to go? what date and city would you like to depart from? [user] i am going to chicago. i plan on departing from philly on march 11th.
State: [state] destination=chicago airlines=none seating_class=none return_date=none departure_date=march 11th passengers=none origin=philly

[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 destination=sf seating_class=b of possible values a) business b) economy c) first class d) premium economy departure_date=9th of this month airlines=g of possible values a) alaska airlines b) american airlines c) air france d) air canada e) british airways f) united airlines g) delta airlines h) southwest airlines origin=seattle passengers=b of possible values a) 2 b) 1 c) 4 d) 3 [context] [user] i want a one way flight ticket. [system] where do you want to go? what date and city would you like to depart from? [user] i am going to chicago. i plan on departing from philly on march 11th. [system] i found 4 available flights. are you interested in flying with american airlines? their flight departs at 10:10 am and has 0 stops. a ticket costs $122. [user] i want a round trip flight. i want four tickets and to return on the 13th of march.
State: [state] return_date=13th of march destination=chicago seating_class=none departure_date=march 11th airlines=b origin=philly passengers=c

[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) 2 b) 1 c) 3 d) 4 airlines=h of possible values a) alaska airlines b) air canada c) southwest airlines d) british airways e) air france f) american airlines g) united airlines h) delta airlines seating_class=c of possible values a) premium economy b) business c) economy d) first class destination=sf origin=seattle return_date=the 13th [context] [user] i want a one way flight ticket. [system] where do you want to go? what date and city would you like to depart from? [user] i am going to chicago. i plan on departing from philly on march 11th. [system] i found 4 available flights. are you interested in flying with american airlines? their flight departs at 10:10 am and has 0 stops. a ticket costs $122. [user] i want a round trip flight. i want four tickets and to return on the 13th of march. [system] i found 1 flight and it's with american airlines. the departure is scheduled for 10:10 am and the returning flight takes of at 6:40 pm. this ticket is $121. [user] is it a red-eye?
State: [state] departure_date=march 11th passengers=d airlines=f seating_class=none destination=chicago origin=philly return_date=13th of march

[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 destination=sf seating_class=b of possible values a) first class b) economy c) business d) premium economy origin=seattle airlines=b of possible values a) united airlines b) delta airlines c) air canada d) american airlines e) alaska airlines f) air france g) british airways h) southwest airlines return_date=the 13th passengers=b of possible values a) 2 b) 1 c) 4 d) 3 [context] [user] i want a one way flight ticket. [system] where do you want to go? what date and city would you like to depart from? [user] i am going to chicago. i plan on departing from philly on march 11th. [system] i found 4 available flights. are you interested in flying with american airlines? their flight departs at 10:10 am and has 0 stops. a ticket costs $122. [user] i want a round trip flight. i want four tickets and to return on the 13th of march. [system] i found 1 flight and it's with american airlines. the departure is scheduled for 10:10 am and the returning flight takes of at 6:40 pm. this ticket is $121. [user] is it a red-eye? [system] no it isn't. [user] is it business class?
State: [state] departure_date=march 11th destination=chicago seating_class=none origin=philly airlines=d return_date=13th of march passengers=c

[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 destination=sf return_date=the 13th departure_date=9th of this month seating_class=b of possible values a) first class b) economy c) premium economy d) business passengers=b of possible values a) 3 b) 1 c) 2 d) 4 airlines=f of possible values a) british airways b) united airlines c) southwest airlines d) american airlines e) alaska airlines f) delta airlines g) air france h) air canada [context] [user] i want a one way flight ticket. [system] where do you want to go? what date and city would you like to depart from? [user] i am going to chicago. i plan on departing from philly on march 11th. [system] i found 4 available flights. are you interested in flying with american airlines? their flight departs at 10:10 am and has 0 stops. a ticket costs $122. [user] i want a round trip flight. i want four tickets and to return on the 13th of march. [system] i found 1 flight and it's with american airlines. the departure is scheduled for 10:10 am and the returning flight takes of at 6:40 pm. this ticket is $121. [user] is it a red-eye? [system] no it isn't. [user] is it business class? [system] it is economy class? [user] alright.
State: [state] origin=philly destination=chicago return_date=13th of march departure_date=march 11th seating_class=none passengers=d airlines=d

[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) united airlines b) alaska airlines c) british airways d) air canada e) american airlines f) southwest airlines g) delta airlines h) air france destination=sf departure_date=9th of this month passengers=d of possible values a) 2 b) 4 c) 3 d) 1 seating_class=c of possible values a) business b) premium economy c) economy d) first class return_date=the 13th origin=seattle [context] [user] i want a one way flight ticket. [system] where do you want to go? what date and city would you like to depart from? [user] i am going to chicago. i plan on departing from philly on march 11th. [system] i found 4 available flights. are you interested in flying with american airlines? their flight departs at 10:10 am and has 0 stops. a ticket costs $122. [user] i want a round trip flight. i want four tickets and to return on the 13th of march. [system] i found 1 flight and it's with american airlines. the departure is scheduled for 10:10 am and the returning flight takes of at 6:40 pm. this ticket is $121. [user] is it a red-eye? [system] no it isn't. [user] is it business class? [system] it is economy class? [user] alright. [system] is there anything else i may help you with? [user] no, thanks.
State: [state] airlines=e destination=chicago departure_date=march 11th passengers=b seating_class=none return_date=13th of march origin=philly