[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) first class c) economy d) business destination=sf airlines=h of possible values a) southwest airlines b) air canada c) air france d) united airlines e) british airways f) american airlines g) alaska airlines h) delta airlines 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 [context] [user] i'd like to buy a one-way flight.
State: [state] seating_class=none destination=none airlines=none departure_date=none return_date=none origin=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] passengers=a of possible values a) 1 b) 3 c) 2 d) 4 airlines=f of possible values a) southwest airlines b) united airlines c) air canada d) british airways e) alaska airlines f) delta airlines g) air france h) american airlines destination=sf departure_date=9th of this month origin=seattle return_date=the 13th seating_class=c of possible values a) first class b) business c) economy d) premium economy [context] [user] i'd like to buy a one-way flight. [system] okay, when would you like to travel? and what city will you be departing from? [user] i'm gonna be travelling on march 6th, and i'll be leaving from phoenix.
State: [state] passengers=none airlines=none destination=none departure_date=march 6th origin=phoenix return_date=none seating_class=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=b of possible values a) 4 b) 1 c) 3 d) 2 origin=seattle destination=sf return_date=the 13th seating_class=b of possible values a) business b) economy c) first class d) premium economy departure_date=9th of this month airlines=e of possible values a) united airlines b) southwest airlines c) air canada d) british airways e) delta airlines f) american airlines g) alaska airlines h) air france [context] [user] i'd like to buy a one-way flight. [system] okay, when would you like to travel? and what city will you be departing from? [user] i'm gonna be travelling on march 6th, and i'll be leaving from phoenix. [system] and where would you like to go? [user] i need a flight to portland, or.
State: [state] passengers=none origin=phoenix destination=portland, or return_date=none seating_class=none departure_date=march 6th 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] passengers=d of possible values a) 2 b) 4 c) 3 d) 1 origin=seattle departure_date=9th of this month return_date=the 13th seating_class=c of possible values a) first class b) premium economy c) economy d) business airlines=h of possible values a) american airlines b) air canada c) british airways d) united airlines e) alaska airlines f) southwest airlines g) air france h) delta airlines destination=sf [context] [user] i'd like to buy a one-way flight. [system] okay, when would you like to travel? and what city will you be departing from? [user] i'm gonna be travelling on march 6th, and i'll be leaving from phoenix. [system] and where would you like to go? [user] i need a flight to portland, or. [system] i found 4 flights to choose from. how about american airlines? takeoff is at 1:05 pm, there are 0 stops, and the ticket costs $153. [user] is it a redeye? and what time would i arrive?
State: [state] passengers=none origin=phoenix departure_date=march 6th return_date=none seating_class=none airlines=none destination=portland, or

[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 seating_class=d of possible values a) first class b) premium economy c) business d) economy destination=sf origin=seattle airlines=e of possible values a) air canada b) air france c) british airways d) alaska airlines e) delta airlines f) southwest airlines g) united airlines h) american airlines passengers=b of possible values a) 3 b) 1 c) 4 d) 2 [context] [user] i'd like to buy a one-way flight. [system] okay, when would you like to travel? and what city will you be departing from? [user] i'm gonna be travelling on march 6th, and i'll be leaving from phoenix. [system] and where would you like to go? [user] i need a flight to portland, or. [system] i found 4 flights to choose from. how about american airlines? takeoff is at 1:05 pm, there are 0 stops, and the ticket costs $153. [user] is it a redeye? and what time would i arrive? [system] it's not an overnight flight, and it arrives at 4 pm. [user] great, thanks! that's all i needed.
State: [state] return_date=none departure_date=march 6th seating_class=none destination=portland, or origin=phoenix airlines=h passengers=none