[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=e of possible values a) american airlines b) southwest airlines c) united airlines d) air canada e) delta airlines f) british airways g) alaska airlines h) air france origin=seattle return_date=the 13th seating_class=c of possible values a) premium economy b) business c) economy d) first class destination=sf passengers=c of possible values a) 3 b) 4 c) 1 d) 2 departure_date=9th of this month [context] [user] i want to book 2 tickets for a one way flight.
State: [state] airlines=none origin=none return_date=none seating_class=none destination=none passengers=d departure_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] destination=sf origin=seattle departure_date=9th of this month airlines=h of possible values a) air canada b) british airways c) air france d) alaska airlines e) united airlines f) american airlines g) southwest airlines h) delta airlines passengers=a of possible values a) 1 b) 4 c) 3 d) 2 seating_class=c of possible values a) premium economy b) first class c) economy d) business return_date=the 13th [context] [user] i want to book 2 tickets for a one way flight. [system] what date would you like to travel? where are you planning to go? [user] i want to fly to vancouver, bc later today.
State: [state] destination=vancouver, bc origin=none departure_date=later today airlines=none passengers=d seating_class=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) 2 b) 4 c) 1 d) 3 return_date=the 13th destination=sf departure_date=9th of this month airlines=a of possible values a) delta airlines b) air france c) british airways d) southwest airlines e) united airlines f) alaska airlines g) air canada h) american airlines origin=seattle seating_class=b of possible values a) business b) economy c) first class d) premium economy [context] [user] i want to book 2 tickets for a one way flight. [system] what date would you like to travel? where are you planning to go? [user] i want to fly to vancouver, bc later today. [system] which city do you want to depart from? [user] i want to depart from phoenix, az in economy class.
State: [state] passengers=a return_date=none destination=vancouver, bc departure_date=later today airlines=none origin=phoenix, az 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] return_date=the 13th airlines=a of possible values a) delta airlines b) southwest airlines c) united airlines d) air canada e) alaska airlines f) air france g) american airlines h) british airways departure_date=9th of this month passengers=b of possible values a) 2 b) 1 c) 3 d) 4 origin=seattle seating_class=b of possible values a) premium economy b) economy c) business d) first class destination=sf [context] [user] i want to book 2 tickets for a one way flight. [system] what date would you like to travel? where are you planning to go? [user] i want to fly to vancouver, bc later today. [system] which city do you want to depart from? [user] i want to depart from phoenix, az in economy class. [system] i found 4 flights available on american airlines. the earliest flight has 1 stop and leaves at 7:35 am at $228 per ticket. [user] find me something else with united airlines.
State: [state] return_date=none airlines=c departure_date=later today passengers=a origin=phoenix, az seating_class=b destination=vancouver, bc

[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) 2 b) 3 c) 4 d) 1 origin=seattle departure_date=9th of this month seating_class=a of possible values a) economy b) first class c) business d) premium economy airlines=h of possible values a) air france b) british airways c) alaska airlines d) air canada e) american airlines f) southwest airlines g) united airlines h) delta airlines return_date=the 13th destination=sf [context] [user] i want to book 2 tickets for a one way flight. [system] what date would you like to travel? where are you planning to go? [user] i want to fly to vancouver, bc later today. [system] which city do you want to depart from? [user] i want to depart from phoenix, az in economy class. [system] i found 4 flights available on american airlines. the earliest flight has 1 stop and leaves at 7:35 am at $228 per ticket. [user] find me something else with united airlines. [system] i found 1 flight for you with united airlines that has 1 stop and departs at 7:15 am for $232. [user] where does the flight land?
State: [state] passengers=a origin=phoenix, az departure_date=later today seating_class=a airlines=g return_date=none destination=vancouver, bc

[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 destination=sf seating_class=b of possible values a) first class b) economy c) business d) premium economy passengers=d of possible values a) 4 b) 2 c) 3 d) 1 airlines=a of possible values a) delta airlines b) alaska airlines c) british airways d) air france e) air canada f) united airlines g) american airlines h) southwest airlines [context] [user] i want to book 2 tickets for a one way flight. [system] what date would you like to travel? where are you planning to go? [user] i want to fly to vancouver, bc later today. [system] which city do you want to depart from? [user] i want to depart from phoenix, az in economy class. [system] i found 4 flights available on american airlines. the earliest flight has 1 stop and leaves at 7:35 am at $228 per ticket. [user] find me something else with united airlines. [system] i found 1 flight for you with united airlines that has 1 stop and departs at 7:15 am for $232. [user] where does the flight land? [system] the flight destination is at yvr international airport. [user] when does the flight arrive at my destination? is this a redeye flight?
State: [state] departure_date=later today return_date=none origin=phoenix, az destination=vancouver, bc seating_class=b passengers=b airlines=f

[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=c of possible values a) first class b) premium economy c) economy d) business destination=sf departure_date=9th of this month origin=seattle airlines=e of possible values a) american airlines b) alaska airlines c) southwest airlines d) air canada e) delta airlines f) air france g) united airlines h) british airways passengers=b of possible values a) 4 b) 1 c) 3 d) 2 return_date=the 13th [context] [user] i want to book 2 tickets for a one way flight. [system] what date would you like to travel? where are you planning to go? [user] i want to fly to vancouver, bc later today. [system] which city do you want to depart from? [user] i want to depart from phoenix, az in economy class. [system] i found 4 flights available on american airlines. the earliest flight has 1 stop and leaves at 7:35 am at $228 per ticket. [user] find me something else with united airlines. [system] i found 1 flight for you with united airlines that has 1 stop and departs at 7:15 am for $232. [user] where does the flight land? [system] the flight destination is at yvr international airport. [user] when does the flight arrive at my destination? is this a redeye flight? [system] the flight is not a redeye flight and will arrive at 1:59 pm [user] ok.
State: [state] seating_class=c destination=vancouver, bc departure_date=later today origin=phoenix, az airlines=g passengers=d 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] return_date=the 13th departure_date=9th of this month destination=sf origin=seattle airlines=d of possible values a) alaska airlines b) american airlines c) air canada d) delta airlines e) southwest airlines f) air france g) british airways h) united airlines passengers=a of possible values a) 1 b) 3 c) 4 d) 2 seating_class=d of possible values a) premium economy b) first class c) business d) economy [context] [user] i want to book 2 tickets for a one way flight. [system] what date would you like to travel? where are you planning to go? [user] i want to fly to vancouver, bc later today. [system] which city do you want to depart from? [user] i want to depart from phoenix, az in economy class. [system] i found 4 flights available on american airlines. the earliest flight has 1 stop and leaves at 7:35 am at $228 per ticket. [user] find me something else with united airlines. [system] i found 1 flight for you with united airlines that has 1 stop and departs at 7:15 am for $232. [user] where does the flight land? [system] the flight destination is at yvr international airport. [user] when does the flight arrive at my destination? is this a redeye flight? [system] the flight is not a redeye flight and will arrive at 1:59 pm [user] ok. [system] can i help you with something else? [user] no. thanks for your help.
State: [state] return_date=none departure_date=later today destination=vancouver, bc origin=phoenix, az airlines=h passengers=d seating_class=d