[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) first class d) business return_date=the 13th destination=sf departure_date=9th of this month airlines=d of possible values a) american airlines b) air canada c) air france d) delta airlines e) united airlines f) british airways g) southwest airlines h) alaska airlines passengers=a of possible values a) 1 b) 4 c) 2 d) 3 [context] [user] i want to search a one way flight. i want to travel on march 4th. i want to book one ticket.
State: [state] origin=none seating_class=none return_date=none destination=none departure_date=march 4th airlines=none passengers=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 seating_class=b of possible values a) first class b) economy c) business d) premium economy origin=seattle return_date=the 13th passengers=a of possible values a) 1 b) 2 c) 4 d) 3 departure_date=9th of this month airlines=d of possible values a) air canada b) american airlines c) united airlines d) delta airlines e) alaska airlines f) british airways g) southwest airlines h) air france [context] [user] i want to search a one way flight. i want to travel on march 4th. i want to book one ticket. [system] at which city do you like to depart from? [user] can you find economy class tickets. i am looking for flights from toronto, ontario.
State: [state] destination=none seating_class=b origin=toronto, ontario return_date=none passengers=a departure_date=march 4th 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] destination=sf departure_date=9th of this month return_date=the 13th origin=seattle seating_class=a of possible values a) economy b) first class c) business d) premium economy airlines=f of possible values a) united airlines b) british airways c) air france d) alaska airlines e) air canada f) delta airlines g) southwest airlines h) american airlines passengers=b of possible values a) 2 b) 1 c) 4 d) 3 [context] [user] i want to search a one way flight. i want to travel on march 4th. i want to book one ticket. [system] at which city do you like to depart from? [user] can you find economy class tickets. i am looking for flights from toronto, ontario. [system] where do you plan to go? [user] i am going to sfo. so i would like to fly with air canada.
State: [state] destination=sfo departure_date=march 4th return_date=none origin=toronto, ontario seating_class=a airlines=e passengers=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] departure_date=9th of this month seating_class=d of possible values a) business b) premium economy c) first class d) economy return_date=the 13th passengers=b of possible values a) 2 b) 1 c) 4 d) 3 origin=seattle destination=sf airlines=h of possible values a) air france b) alaska airlines c) united airlines d) american airlines e) british airways f) air canada g) southwest airlines h) delta airlines [context] [user] i want to search a one way flight. i want to travel on march 4th. i want to book one ticket. [system] at which city do you like to depart from? [user] can you find economy class tickets. i am looking for flights from toronto, ontario. [system] where do you plan to go? [user] i am going to sfo. so i would like to fly with air canada. [system] i found 1 flight. would you like to go by air canada? the flight will be taking off at 4:40 pm. it has 1 stop. the ticket price costs $283 [user] okay great.
State: [state] departure_date=march 4th seating_class=d return_date=none passengers=b origin=toronto, ontario destination=sfo 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] return_date=the 13th departure_date=9th of this month airlines=f of possible values a) air france b) alaska airlines c) british airways d) united airlines e) southwest airlines f) delta airlines g) american airlines h) air canada origin=seattle passengers=c of possible values a) 3 b) 4 c) 1 d) 2 seating_class=b of possible values a) business b) economy c) first class d) premium economy destination=sf [context] [user] i want to search a one way flight. i want to travel on march 4th. i want to book one ticket. [system] at which city do you like to depart from? [user] can you find economy class tickets. i am looking for flights from toronto, ontario. [system] where do you plan to go? [user] i am going to sfo. so i would like to fly with air canada. [system] i found 1 flight. would you like to go by air canada? the flight will be taking off at 4:40 pm. it has 1 stop. the ticket price costs $283 [user] okay great. [system] is there anything else you want to know? [user] no thanks.
State: [state] return_date=none departure_date=march 4th airlines=h origin=toronto, ontario passengers=c seating_class=b destination=sfo