[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 airlines=h of possible values a) air france b) alaska airlines c) air canada d) united airlines e) british airways f) american airlines g) southwest airlines h) delta airlines return_date=the 13th departure_date=9th of this month origin=seattle destination=sf passengers=c of possible values a) 2 b) 3 c) 1 d) 4 [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets.
State: [state] seating_class=d airlines=none return_date=none departure_date=next thursday origin=none destination=none 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] departure_date=9th of this month destination=sf airlines=d of possible values a) air canada b) british airways c) american airlines d) delta airlines e) air france f) southwest airlines g) alaska airlines h) united airlines return_date=the 13th origin=seattle passengers=d of possible values a) 2 b) 3 c) 4 d) 1 seating_class=a of possible values a) economy b) first class c) business d) premium economy [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco.
State: [state] departure_date=next thursday destination=san francisco airlines=none return_date=none origin=washington passengers=none seating_class=a

[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 return_date=the 13th airlines=g of possible values a) air france b) united airlines c) alaska airlines d) southwest airlines e) american airlines f) british airways g) delta airlines h) air canada seating_class=c of possible values a) premium economy b) first class c) economy d) business departure_date=9th of this month origin=seattle passengers=d of possible values a) 3 b) 2 c) 4 d) 1 [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco. [system] i have a flight on american airlines for $294, leaving at 9:45 am. that flight has 1 stop. [user] which airport does it leave from, and where does it land?
State: [state] destination=san francisco return_date=none airlines=none seating_class=c departure_date=next thursday origin=washington 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=a of possible values a) 1 b) 2 c) 3 d) 4 return_date=the 13th airlines=d of possible values a) alaska airlines b) british airways c) southwest airlines d) delta airlines e) air canada f) air france g) united airlines h) american airlines departure_date=9th of this month destination=sf seating_class=c of possible values a) premium economy b) first class c) economy d) business origin=seattle [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco. [system] i have a flight on american airlines for $294, leaving at 9:45 am. that flight has 1 stop. [user] which airport does it leave from, and where does it land? [system] that flight leaves from dulles international airport, and arrives at sfo international airport. [user] that's not really what i want. please find something else.
State: [state] passengers=none return_date=none airlines=none departure_date=next thursday destination=san francisco seating_class=c origin=washington

[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 seating_class=a of possible values a) economy b) premium economy c) business d) first class origin=seattle return_date=the 13th destination=sf passengers=d of possible values a) 4 b) 2 c) 3 d) 1 airlines=b of possible values a) alaska airlines b) delta airlines c) air canada d) british airways e) southwest airlines f) air france g) american airlines h) united airlines [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco. [system] i have a flight on american airlines for $294, leaving at 9:45 am. that flight has 1 stop. [user] which airport does it leave from, and where does it land? [system] that flight leaves from dulles international airport, and arrives at sfo international airport. [user] that's not really what i want. please find something else. [system] i have a flight on southwest airlines for $280. it takes off at 3:50 pm and also has 1 stop. [user] no, i want something else please.
State: [state] departure_date=next thursday seating_class=a origin=washington return_date=none destination=san francisco passengers=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] departure_date=9th of this month destination=sf origin=seattle seating_class=a of possible values a) economy b) first class c) business d) premium economy return_date=the 13th passengers=a of possible values a) 1 b) 4 c) 3 d) 2 airlines=f of possible values a) alaska airlines b) air france c) american airlines d) british airways e) air canada f) delta airlines g) southwest airlines h) united airlines [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco. [system] i have a flight on american airlines for $294, leaving at 9:45 am. that flight has 1 stop. [user] which airport does it leave from, and where does it land? [system] that flight leaves from dulles international airport, and arrives at sfo international airport. [user] that's not really what i want. please find something else. [system] i have a flight on southwest airlines for $280. it takes off at 3:50 pm and also has 1 stop. [user] no, i want something else please. [system] there are seats available on a united airlines flight that takes off at 8 am. that one is $292 and also has 1 stop. [user] i would like a round trip for that.
State: [state] departure_date=next thursday destination=san francisco origin=washington seating_class=a return_date=none passengers=none airlines=h

[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) premium economy c) business d) first class passengers=a of possible values a) 1 b) 3 c) 4 d) 2 destination=sf airlines=a of possible values a) delta airlines b) united airlines c) british airways d) american airlines e) alaska airlines f) air canada g) air france h) southwest airlines departure_date=9th of this month origin=seattle return_date=the 13th [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco. [system] i have a flight on american airlines for $294, leaving at 9:45 am. that flight has 1 stop. [user] which airport does it leave from, and where does it land? [system] that flight leaves from dulles international airport, and arrives at sfo international airport. [user] that's not really what i want. please find something else. [system] i have a flight on southwest airlines for $280. it takes off at 3:50 pm and also has 1 stop. [user] no, i want something else please. [system] there are seats available on a united airlines flight that takes off at 8 am. that one is $292 and also has 1 stop. [user] i would like a round trip for that. [system] okay, on what day would you return? [user] i will return on the 9th of this month.
State: [state] seating_class=a passengers=none destination=san francisco airlines=b departure_date=next thursday origin=washington return_date=9th of this month

[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 return_date=the 13th origin=seattle passengers=c of possible values a) 4 b) 3 c) 1 d) 2 airlines=b of possible values a) air france b) delta airlines c) american airlines d) southwest airlines e) united airlines f) air canada g) alaska airlines h) british airways destination=sf seating_class=a of possible values a) economy b) business c) first class d) premium economy [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco. [system] i have a flight on american airlines for $294, leaving at 9:45 am. that flight has 1 stop. [user] which airport does it leave from, and where does it land? [system] that flight leaves from dulles international airport, and arrives at sfo international airport. [user] that's not really what i want. please find something else. [system] i have a flight on southwest airlines for $280. it takes off at 3:50 pm and also has 1 stop. [user] no, i want something else please. [system] there are seats available on a united airlines flight that takes off at 8 am. that one is $292 and also has 1 stop. [user] i would like a round trip for that. [system] okay, on what day would you return? [user] i will return on the 9th of this month. [system] i have 1 flight available on united airlines for $298, taking off at 8 am. the return flight will depart at 5:50 am. [user] ok, thanks.
State: [state] departure_date=next thursday return_date=9th of this month origin=washington passengers=none airlines=e destination=san francisco seating_class=a

[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=b of possible values a) premium economy b) economy c) business d) first class return_date=the 13th airlines=h of possible values a) air canada b) air france c) american airlines d) united airlines e) southwest airlines f) alaska airlines g) british airways h) delta airlines passengers=d of possible values a) 2 b) 4 c) 3 d) 1 destination=sf departure_date=9th of this month [context] [user] i'm looking for a one-way flight to depart next thursday. please search for economy class tickets. [system] i can help you with that. where are you leaving from, and what's your destination? [user] i am looking for flights from washington to san francisco. [system] i have a flight on american airlines for $294, leaving at 9:45 am. that flight has 1 stop. [user] which airport does it leave from, and where does it land? [system] that flight leaves from dulles international airport, and arrives at sfo international airport. [user] that's not really what i want. please find something else. [system] i have a flight on southwest airlines for $280. it takes off at 3:50 pm and also has 1 stop. [user] no, i want something else please. [system] there are seats available on a united airlines flight that takes off at 8 am. that one is $292 and also has 1 stop. [user] i would like a round trip for that. [system] okay, on what day would you return? [user] i will return on the 9th of this month. [system] i have 1 flight available on united airlines for $298, taking off at 8 am. the return flight will depart at 5:50 am. [user] ok, thanks. [system] is there anything else i can help you with today? [user] no, that's all. thank you.
State: [state] origin=washington seating_class=b return_date=9th of this month airlines=d passengers=none destination=san francisco departure_date=next thursday