[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=a of possible values a) delta airlines b) british airways c) air canada d) united airlines e) american airlines f) southwest airlines g) alaska airlines h) air france departure_date=9th of this month seating_class=b of possible values a) first class b) economy c) premium economy d) business passengers=a of possible values a) 1 b) 4 c) 3 d) 2 return_date=the 13th destination=sf origin=seattle [context] [user] i'd like a one way flight.
State: [state] airlines=none departure_date=none seating_class=none passengers=none return_date=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] passengers=c of possible values a) 3 b) 4 c) 1 d) 2 airlines=h of possible values a) alaska airlines b) british airways c) united airlines d) air canada e) american airlines f) southwest airlines g) air france h) delta airlines origin=seattle seating_class=a of possible values a) economy b) business c) first class d) premium economy departure_date=9th of this month destination=sf return_date=the 13th [context] [user] i'd like a one way flight. [system] what is the date and city you wish to departure from? [user] i'm looking for a flight from chi-town on the 6th of march.
State: [state] passengers=none airlines=none origin=chi-town seating_class=none departure_date=6th of march destination=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] passengers=c of possible values a) 3 b) 4 c) 1 d) 2 origin=seattle departure_date=9th of this month return_date=the 13th destination=sf seating_class=c of possible values a) business b) first class c) economy d) premium economy airlines=h of possible values a) air canada b) american airlines c) united airlines d) alaska airlines e) air france f) british airways g) southwest airlines h) delta airlines [context] [user] i'd like a one way flight. [system] what is the date and city you wish to departure from? [user] i'm looking for a flight from chi-town on the 6th of march. [system] where is your intended destination? [user] i'll be going to los angeles.
State: [state] passengers=none origin=chi-town departure_date=6th of march return_date=none destination=los angeles seating_class=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] passengers=d of possible values a) 4 b) 3 c) 2 d) 1 origin=seattle seating_class=d of possible values a) first class b) business c) premium economy d) economy airlines=d of possible values a) american airlines b) air france c) british airways d) delta airlines e) southwest airlines f) air canada g) united airlines h) alaska airlines destination=sf departure_date=9th of this month return_date=the 13th [context] [user] i'd like a one way flight. [system] what is the date and city you wish to departure from? [user] i'm looking for a flight from chi-town on the 6th of march. [system] where is your intended destination? [user] i'll be going to los angeles. [system] i have 4 options for you. the first is with american airlines leaving at 4:30 am with 0 stops. the cost of the flight will be $157. [user] can you find me a flight for economy class tickets?
State: [state] passengers=none origin=chi-town seating_class=d airlines=a destination=los angeles departure_date=6th of march 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] departure_date=9th of this month passengers=b of possible values a) 3 b) 1 c) 2 d) 4 airlines=g of possible values a) british airways b) united airlines c) american airlines d) alaska airlines e) air canada f) southwest airlines g) delta airlines h) air france origin=seattle destination=sf seating_class=c of possible values a) business b) premium economy c) economy d) first class return_date=the 13th [context] [user] i'd like a one way flight. [system] what is the date and city you wish to departure from? [user] i'm looking for a flight from chi-town on the 6th of march. [system] where is your intended destination? [user] i'll be going to los angeles. [system] i have 4 options for you. the first is with american airlines leaving at 4:30 am with 0 stops. the cost of the flight will be $157. [user] can you find me a flight for economy class tickets? [system] what day would you like to return? [user] i'd like one ticket to return next friday.
State: [state] departure_date=6th of march passengers=b airlines=c origin=chi-town destination=los angeles seating_class=c return_date=next friday

[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 return_date=the 13th destination=sf airlines=a of possible values a) delta airlines b) british airways c) air france d) air canada e) alaska airlines f) southwest airlines g) american airlines h) united airlines passengers=b of possible values a) 4 b) 1 c) 3 d) 2 seating_class=b of possible values a) business b) economy c) premium economy d) first class [context] [user] i'd like a one way flight. [system] what is the date and city you wish to departure from? [user] i'm looking for a flight from chi-town on the 6th of march. [system] where is your intended destination? [user] i'll be going to los angeles. [system] i have 4 options for you. the first is with american airlines leaving at 4:30 am with 0 stops. the cost of the flight will be $157. [user] can you find me a flight for economy class tickets? [system] what day would you like to return? [user] i'd like one ticket to return next friday. [system] how about american airlines leaving at 4:30 am. the returning flight leaves at 8:30 am and costs $167. [user] will this be a late night flight?
State: [state] departure_date=6th of march origin=chi-town return_date=next friday destination=los angeles airlines=g passengers=b seating_class=b

[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=g of possible values a) air france b) british airways c) alaska airlines d) united airlines e) southwest airlines f) american airlines g) delta airlines h) air canada departure_date=9th of this month passengers=b of possible values a) 2 b) 1 c) 3 d) 4 origin=seattle return_date=the 13th seating_class=d of possible values a) premium economy b) business c) first class d) economy [context] [user] i'd like a one way flight. [system] what is the date and city you wish to departure from? [user] i'm looking for a flight from chi-town on the 6th of march. [system] where is your intended destination? [user] i'll be going to los angeles. [system] i have 4 options for you. the first is with american airlines leaving at 4:30 am with 0 stops. the cost of the flight will be $157. [user] can you find me a flight for economy class tickets? [system] what day would you like to return? [user] i'd like one ticket to return next friday. [system] how about american airlines leaving at 4:30 am. the returning flight leaves at 8:30 am and costs $167. [user] will this be a late night flight? [system] no, it is not a redeye flight. [user] that sounds good.
State: [state] destination=los angeles airlines=f departure_date=6th of march passengers=b origin=chi-town return_date=next friday seating_class=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] destination=sf return_date=the 13th departure_date=9th of this month origin=seattle passengers=a of possible values a) 1 b) 4 c) 2 d) 3 seating_class=c of possible values a) premium economy b) business c) economy d) first class airlines=c of possible values a) british airways b) air canada c) delta airlines d) united airlines e) southwest airlines f) air france g) alaska airlines h) american airlines [context] [user] i'd like a one way flight. [system] what is the date and city you wish to departure from? [user] i'm looking for a flight from chi-town on the 6th of march. [system] where is your intended destination? [user] i'll be going to los angeles. [system] i have 4 options for you. the first is with american airlines leaving at 4:30 am with 0 stops. the cost of the flight will be $157. [user] can you find me a flight for economy class tickets? [system] what day would you like to return? [user] i'd like one ticket to return next friday. [system] how about american airlines leaving at 4:30 am. the returning flight leaves at 8:30 am and costs $167. [user] will this be a late night flight? [system] no, it is not a redeye flight. [user] that sounds good. [system] is there anything else i can help you with? [user] no, but thank you.
State: [state] destination=los angeles return_date=next friday departure_date=6th of march origin=chi-town passengers=a seating_class=c airlines=h