[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=c of possible values a) premium economy b) business c) economy d) first class airlines=f of possible values a) american airlines b) air canada c) southwest airlines d) air france e) alaska airlines f) delta airlines g) british airways h) united airlines destination=sf origin=seattle departure_date=9th of this month passengers=b of possible values a) 3 b) 1 c) 2 d) 4 [context] [user] i would like to find a flight that returns on march 11th.
State: [state] return_date=march 11th seating_class=none airlines=none destination=none origin=none departure_date=none passengers=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] airlines=c of possible values a) air canada b) alaska airlines c) delta airlines d) british airways e) american airlines f) air france g) southwest airlines h) united airlines origin=seattle destination=sf return_date=the 13th seating_class=c of possible values a) premium economy b) first class c) economy d) business passengers=c of possible values a) 4 b) 2 c) 1 d) 3 departure_date=9th of this month [context] [user] i would like to find a flight that returns on march 11th. [system] where are you leaving from, and where would you like to go? [user] i would like to fly from chi-town to sf.
State: [state] airlines=none origin=chi-town destination=sf return_date=march 11th seating_class=none passengers=none 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] return_date=the 13th destination=sf seating_class=d of possible values a) first class b) premium economy c) business d) economy origin=seattle airlines=e of possible values a) air canada b) air france c) united airlines d) southwest airlines e) delta airlines f) american airlines g) alaska airlines h) british airways passengers=d of possible values a) 2 b) 3 c) 4 d) 1 departure_date=9th of this month [context] [user] i would like to find a flight that returns on march 11th. [system] where are you leaving from, and where would you like to go? [user] i would like to fly from chi-town to sf. [system] when would you like to travel? [user] i would like to depart on the 7th.
State: [state] return_date=march 11th destination=sf seating_class=none origin=chi-town airlines=none passengers=none departure_date=the 7th

[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 seating_class=d of possible values a) premium economy b) first class c) business d) economy return_date=the 13th origin=seattle passengers=b of possible values a) 3 b) 1 c) 2 d) 4 airlines=a of possible values a) delta airlines b) southwest airlines c) british airways d) alaska airlines e) air france f) air canada g) united airlines h) american airlines [context] [user] i would like to find a flight that returns on march 11th. [system] where are you leaving from, and where would you like to go? [user] i would like to fly from chi-town to sf. [system] when would you like to travel? [user] i would like to depart on the 7th. [system] i've found 4 such flights. there is a flight with american airlines. the departing flight is at 7:05 am, and the returning flight is at 3:20 pm. the price of the ticket is $166. [user] okay. i want 2 tickets for a one way flight.
State: [state] departure_date=the 7th destination=sf seating_class=none return_date=march 11th origin=chi-town passengers=c airlines=h

[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 passengers=b of possible values a) 3 b) 1 c) 2 d) 4 departure_date=9th of this month origin=seattle return_date=the 13th airlines=b of possible values a) american airlines b) delta airlines c) air france d) air canada e) british airways f) united airlines g) alaska airlines h) southwest airlines [context] [user] i would like to find a flight that returns on march 11th. [system] where are you leaving from, and where would you like to go? [user] i would like to fly from chi-town to sf. [system] when would you like to travel? [user] i would like to depart on the 7th. [system] i've found 4 such flights. there is a flight with american airlines. the departing flight is at 7:05 am, and the returning flight is at 3:20 pm. the price of the ticket is $166. [user] okay. i want 2 tickets for a one way flight. [system] i've found 1 such flight. the flight is with american airlines, and the flight departs at 7:05 am. the flight has 0 stops, and the price of the ticket is $153. [user] thank you, that will be all.
State: [state] seating_class=none destination=sf passengers=c departure_date=the 7th origin=chi-town return_date=march 11th airlines=a