[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 seating_class=d of possible values a) premium economy b) first class c) business d) economy destination=sf origin=seattle airlines=h of possible values a) british airways b) american airlines c) united airlines d) southwest airlines e) air france f) alaska airlines g) air canada h) delta airlines passengers=d of possible values a) 3 b) 4 c) 2 d) 1 departure_date=9th of this month [context] [user] i am looking for a flight, on the 6th.
State: [state] return_date=none seating_class=none destination=none origin=none airlines=none passengers=none departure_date=the 6th

[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 airlines=c of possible values a) air france b) american airlines c) delta airlines d) alaska airlines e) british airways f) air canada g) southwest airlines h) united airlines passengers=c of possible values a) 4 b) 3 c) 1 d) 2 return_date=the 13th seating_class=c of possible values a) first class b) business c) economy d) premium economy destination=sf departure_date=9th of this month [context] [user] i am looking for a flight, on the 6th. [system] great, when do you want the return flight and what is your destination? [user] i want to return on march 12th and want to fly to vegas.
State: [state] origin=none airlines=none passengers=none return_date=march 12th seating_class=none destination=vegas departure_date=the 6th

[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) premium economy b) economy c) business d) first class origin=seattle airlines=f of possible values a) american airlines b) united airlines c) alaska airlines d) air canada e) southwest airlines f) delta airlines g) air france h) british airways departure_date=9th of this month passengers=b of possible values a) 2 b) 1 c) 4 d) 3 return_date=the 13th [context] [user] i am looking for a flight, on the 6th. [system] great, when do you want the return flight and what is your destination? [user] i want to return on march 12th and want to fly to vegas. [system] super, which city from which do you want to depart? [user] i want two tickets from portland, or.
State: [state] destination=vegas seating_class=none origin=portland, or airlines=none departure_date=the 6th passengers=a return_date=march 12th

[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=a of possible values a) economy b) premium economy c) first class d) business departure_date=9th of this month passengers=b of possible values a) 2 b) 1 c) 3 d) 4 return_date=the 13th airlines=e of possible values a) alaska airlines b) southwest airlines c) british airways d) american airlines e) delta airlines f) united airlines g) air canada h) air france destination=sf [context] [user] i am looking for a flight, on the 6th. [system] great, when do you want the return flight and what is your destination? [user] i want to return on march 12th and want to fly to vegas. [system] super, which city from which do you want to depart? [user] i want two tickets from portland, or. [system] i found 2 possible flights matching your criteria, do you want to fly with delta airlines departing at 4:40 pm and returning at 7:50 pm. the total cost would be $230. [user] actually could i please have a one way flight?
State: [state] origin=portland, or seating_class=none departure_date=the 6th passengers=a return_date=march 12th airlines=e destination=vegas

[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=g of possible values a) air france b) air canada c) alaska airlines d) american airlines e) united airlines f) british airways g) delta airlines h) southwest airlines return_date=the 13th seating_class=d of possible values a) premium economy b) business c) first class d) economy passengers=a of possible values a) 1 b) 3 c) 4 d) 2 [context] [user] i am looking for a flight, on the 6th. [system] great, when do you want the return flight and what is your destination? [user] i want to return on march 12th and want to fly to vegas. [system] super, which city from which do you want to depart? [user] i want two tickets from portland, or. [system] i found 2 possible flights matching your criteria, do you want to fly with delta airlines departing at 4:40 pm and returning at 7:50 pm. the total cost would be $230. [user] actually could i please have a one way flight? [system] would you like to fly with delta airlines, taking off at 4:40 pm with 1 stop and will cost $206. [user] where would the flight land and what class would the seat be?
State: [state] destination=vegas origin=portland, or departure_date=the 6th airlines=g return_date=march 12th seating_class=none 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] seating_class=d of possible values a) first class b) premium economy c) business d) economy departure_date=9th of this month origin=seattle airlines=a of possible values a) delta airlines b) southwest airlines c) american airlines d) air canada e) alaska airlines f) british airways g) united airlines h) air france return_date=the 13th destination=sf passengers=c of possible values a) 4 b) 3 c) 1 d) 2 [context] [user] i am looking for a flight, on the 6th. [system] great, when do you want the return flight and what is your destination? [user] i want to return on march 12th and want to fly to vegas. [system] super, which city from which do you want to depart? [user] i want two tickets from portland, or. [system] i found 2 possible flights matching your criteria, do you want to fly with delta airlines departing at 4:40 pm and returning at 7:50 pm. the total cost would be $230. [user] actually could i please have a one way flight? [system] would you like to fly with delta airlines, taking off at 4:40 pm with 1 stop and will cost $206. [user] where would the flight land and what class would the seat be? [system] the flight is for mccarran international airport and the seating class is economy. [user] great that's all thanks.
State: [state] seating_class=none departure_date=the 6th origin=portland, or airlines=a return_date=march 12th destination=vegas passengers=d