[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=a of possible values a) delta airlines b) united airlines c) american airlines d) british airways e) southwest airlines f) alaska airlines g) air canada h) air france return_date=the 13th passengers=b of possible values a) 3 b) 1 c) 2 d) 4 origin=seattle seating_class=c of possible values a) business b) premium economy c) economy d) first class [context] [user] i'm looking for a flight.
State: [state] departure_date=none destination=none airlines=none return_date=none passengers=none origin=none seating_class=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 departure_date=9th of this month seating_class=a of possible values a) economy b) first class c) premium economy d) business return_date=the 13th airlines=a of possible values a) delta airlines b) southwest airlines c) united airlines d) air france e) american airlines f) air canada g) british airways h) alaska airlines passengers=c of possible values a) 4 b) 2 c) 1 d) 3 origin=seattle [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th.
State: [state] destination=atlanta, ga departure_date=none seating_class=none return_date=the 13th airlines=none passengers=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 return_date=the 13th passengers=b of possible values a) 3 b) 1 c) 2 d) 4 seating_class=c of possible values a) first class b) premium economy c) economy d) business departure_date=9th of this month airlines=f of possible values a) american airlines b) air canada c) southwest airlines d) united airlines e) air france f) delta airlines g) british airways h) alaska airlines origin=seattle [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th. [system] what day do you want to leave? [user] departing monday next week.
State: [state] destination=atlanta, ga return_date=the 13th passengers=none seating_class=none departure_date=monday next week airlines=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 origin=seattle return_date=the 13th airlines=b of possible values a) air canada b) delta airlines c) british airways d) alaska airlines e) air france f) southwest airlines g) united airlines h) american airlines seating_class=d of possible values a) business b) first class c) premium economy d) economy passengers=d of possible values a) 2 b) 4 c) 3 d) 1 departure_date=9th of this month [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th. [system] what day do you want to leave? [user] departing monday next week. [system] where are you departing from? [user] leaving from phoenix. i would like one ticket departing thursday next week.
State: [state] destination=atlanta, ga origin=phoenix return_date=the 13th airlines=none seating_class=none passengers=d departure_date=thursday next week

[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=h of possible values a) air canada b) british airways c) air france d) alaska airlines e) southwest airlines f) united airlines g) american airlines h) delta airlines origin=seattle passengers=d of possible values a) 4 b) 3 c) 2 d) 1 seating_class=d of possible values a) premium economy b) business c) first class d) economy return_date=the 13th [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th. [system] what day do you want to leave? [user] departing monday next week. [system] where are you departing from? [user] leaving from phoenix. i would like one ticket departing thursday next week. [system] how does american airlines sound? the flight leaves at 11:25 pm and the return flight leaves at 11:40 am. the ticket is $231. [user] i would rather fly united airlines.
State: [state] departure_date=thursday next week destination=atlanta, ga airlines=f origin=phoenix passengers=d seating_class=none return_date=the 13th

[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) 2 c) 1 d) 4 destination=sf return_date=the 13th airlines=g of possible values a) british airways b) southwest airlines c) air canada d) american airlines e) alaska airlines f) united airlines g) delta airlines h) air france seating_class=c of possible values a) business b) first class c) economy d) premium economy departure_date=9th of this month origin=seattle [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th. [system] what day do you want to leave? [user] departing monday next week. [system] where are you departing from? [user] leaving from phoenix. i would like one ticket departing thursday next week. [system] how does american airlines sound? the flight leaves at 11:25 pm and the return flight leaves at 11:40 am. the ticket is $231. [user] i would rather fly united airlines. [system] united airlines has a flight that departs at 8:40 pm and the return flight departs at 3 pm. it costs $262. [user] is this a redeye flight?
State: [state] passengers=c destination=atlanta, ga return_date=the 13th airlines=f seating_class=none departure_date=thursday next week origin=phoenix

[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 canada b) american airlines c) united airlines d) alaska airlines e) southwest airlines f) british airways g) delta airlines h) air france origin=seattle departure_date=9th of this month seating_class=c of possible values a) business b) first class c) economy d) premium economy return_date=the 13th passengers=c of possible values a) 4 b) 3 c) 1 d) 2 [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th. [system] what day do you want to leave? [user] departing monday next week. [system] where are you departing from? [user] leaving from phoenix. i would like one ticket departing thursday next week. [system] how does american airlines sound? the flight leaves at 11:25 pm and the return flight leaves at 11:40 am. the ticket is $231. [user] i would rather fly united airlines. [system] united airlines has a flight that departs at 8:40 pm and the return flight departs at 3 pm. it costs $262. [user] is this a redeye flight? [system] it is an overnight flight. [user] i would like a one way flight in economy class.
State: [state] destination=atlanta, ga airlines=c origin=phoenix departure_date=thursday next week seating_class=c return_date=the 13th 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 seating_class=b of possible values a) premium economy b) economy c) business d) first class return_date=the 13th departure_date=9th of this month destination=sf airlines=a of possible values a) delta airlines b) alaska airlines c) air france d) southwest airlines e) air canada f) united airlines g) british airways h) american airlines passengers=d of possible values a) 4 b) 3 c) 2 d) 1 [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th. [system] what day do you want to leave? [user] departing monday next week. [system] where are you departing from? [user] leaving from phoenix. i would like one ticket departing thursday next week. [system] how does american airlines sound? the flight leaves at 11:25 pm and the return flight leaves at 11:40 am. the ticket is $231. [user] i would rather fly united airlines. [system] united airlines has a flight that departs at 8:40 pm and the return flight departs at 3 pm. it costs $262. [user] is this a redeye flight? [system] it is an overnight flight. [user] i would like a one way flight in economy class. [system] i found 1 flight. united airlines has a flight that takes off at 8:40 pm. the flight has 0 stops. it costs $180. [user] ok.
State: [state] origin=phoenix seating_class=b return_date=the 13th departure_date=thursday next week destination=atlanta, ga airlines=f passengers=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] origin=seattle departure_date=9th of this month 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) united airlines b) delta airlines c) british airways d) american airlines e) air canada f) air france g) southwest airlines h) alaska airlines seating_class=b of possible values a) premium economy b) economy c) business d) first class [context] [user] i'm looking for a flight. [system] what day would you like to return and where are you going? [user] atlanta, ga returning on the 13th. [system] what day do you want to leave? [user] departing monday next week. [system] where are you departing from? [user] leaving from phoenix. i would like one ticket departing thursday next week. [system] how does american airlines sound? the flight leaves at 11:25 pm and the return flight leaves at 11:40 am. the ticket is $231. [user] i would rather fly united airlines. [system] united airlines has a flight that departs at 8:40 pm and the return flight departs at 3 pm. it costs $262. [user] is this a redeye flight? [system] it is an overnight flight. [user] i would like a one way flight in economy class. [system] i found 1 flight. united airlines has a flight that takes off at 8:40 pm. the flight has 0 stops. it costs $180. [user] ok. [system] is there anything else? [user] no, thank you.
State: [state] origin=phoenix departure_date=thursday next week return_date=the 13th destination=atlanta, ga passengers=d airlines=a seating_class=b