[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 airlines=b of possible values a) air france b) delta airlines c) alaska airlines d) american airlines e) united airlines f) air canada g) british airways h) southwest airlines passengers=b of possible values a) 3 b) 1 c) 4 d) 2 seating_class=d of possible values a) premium economy b) first class c) business d) economy return_date=the 13th destination=sf [context] [user] i need 4 tickets for a one way flight.
State: [state] origin=none departure_date=none airlines=none passengers=c seating_class=none return_date=none destination=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 seating_class=a of possible values a) economy b) first class c) business d) premium economy departure_date=9th of this month passengers=d of possible values a) 3 b) 4 c) 2 d) 1 origin=seattle airlines=c of possible values a) air france b) american airlines c) delta airlines d) southwest airlines e) air canada f) united airlines g) alaska airlines h) british airways [context] [user] i need 4 tickets for a one way flight. [system] okay, what date would you like to travel? [user] we want to travel to portland, or on the 11th.
State: [state] destination=portland, or return_date=none seating_class=none departure_date=the 11th passengers=b origin=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] return_date=the 13th destination=sf airlines=g of possible values a) american airlines b) air canada c) alaska airlines d) united airlines e) air france f) southwest airlines g) delta airlines h) british airways seating_class=a of possible values a) economy b) premium economy c) first class d) business passengers=a of possible values a) 1 b) 4 c) 2 d) 3 origin=seattle departure_date=9th of this month [context] [user] i need 4 tickets for a one way flight. [system] okay, what date would you like to travel? [user] we want to travel to portland, or on the 11th. [system] which city do you plan to depart from? [user] we are leaving from phoenix and i would prefer to fly premium economy with american airlines.
State: [state] return_date=none destination=portland, or airlines=a seating_class=b passengers=b origin=phoenix departure_date=the 11th

[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) premium economy b) business c) economy d) first class destination=sf departure_date=9th of this month return_date=the 13th origin=seattle passengers=d of possible values a) 4 b) 3 c) 2 d) 1 airlines=g of possible values a) alaska airlines b) united airlines c) air canada d) american airlines e) southwest airlines f) british airways g) delta airlines h) air france [context] [user] i need 4 tickets for a one way flight. [system] okay, what date would you like to travel? [user] we want to travel to portland, or on the 11th. [system] which city do you plan to depart from? [user] we are leaving from phoenix and i would prefer to fly premium economy with american airlines. [system] i found an american airlines flight that leaves at 1:05 pm with 0 stops. the ticket is $237. [user] okay.
State: [state] seating_class=a destination=portland, or departure_date=the 11th return_date=none origin=phoenix passengers=a airlines=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] airlines=f of possible values a) air canada b) american airlines c) alaska airlines d) air france e) southwest airlines f) delta airlines g) united airlines h) british airways departure_date=9th of this month origin=seattle seating_class=b of possible values a) first class b) economy c) premium economy d) business passengers=c of possible values a) 3 b) 2 c) 1 d) 4 destination=sf return_date=the 13th [context] [user] i need 4 tickets for a one way flight. [system] okay, what date would you like to travel? [user] we want to travel to portland, or on the 11th. [system] which city do you plan to depart from? [user] we are leaving from phoenix and i would prefer to fly premium economy with american airlines. [system] i found an american airlines flight that leaves at 1:05 pm with 0 stops. the ticket is $237. [user] okay. [system] can i help you with something else? [user] no, thanks.
State: [state] airlines=b departure_date=the 11th origin=phoenix seating_class=c passengers=d destination=portland, or return_date=none