[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=g of possible values a) united airlines b) air canada c) british airways d) american airlines e) alaska airlines f) air france g) delta airlines h) southwest airlines seating_class=a of possible values a) economy b) business c) first class d) premium economy destination=sf return_date=the 13th departure_date=9th of this month passengers=d of possible values a) 3 b) 4 c) 2 d) 1 [context] [user] i need a flight for the 11th of march for 3 people.
State: [state] origin=none airlines=none seating_class=none destination=none return_date=none departure_date=11th of march 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] airlines=c of possible values a) united airlines b) alaska airlines c) delta airlines d) british airways e) air france f) american airlines g) air canada h) southwest airlines passengers=c of possible values a) 4 b) 3 c) 1 d) 2 departure_date=9th of this month origin=seattle return_date=the 13th seating_class=c of possible values a) business b) first class c) economy d) premium economy destination=sf [context] [user] i need a flight for the 11th of march for 3 people. [system] where would you like to go? what day would you like to return? what city would you like to depart from? [user] i want to fly on american airlines from mexico city to sfo. returning on the 13th
State: [state] airlines=f passengers=b departure_date=11th of march origin=mexico city return_date=the 13th seating_class=none destination=sfo

[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 return_date=the 13th passengers=a of possible values a) 1 b) 2 c) 4 d) 3 departure_date=9th of this month seating_class=d of possible values a) business b) premium economy c) first class d) economy airlines=g of possible values a) air france b) alaska airlines c) southwest airlines d) air canada e) american airlines f) british airways g) delta airlines h) united airlines [context] [user] i need a flight for the 11th of march for 3 people. [system] where would you like to go? what day would you like to return? what city would you like to depart from? [user] i want to fly on american airlines from mexico city to sfo. returning on the 13th [system] i have 1 flight for youon american airlines departing at 2:55 pm and the returning flight departs at 1:20 pm. the total tick cost is $171. [user] what airport does it leave from?
State: [state] destination=sfo origin=mexico city return_date=the 13th passengers=d departure_date=11th of march seating_class=none airlines=e

[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) 4 c) 2 d) 3 origin=seattle return_date=the 13th seating_class=c of possible values a) first class b) business c) economy d) premium economy departure_date=9th of this month airlines=e of possible values a) british airways b) american airlines c) united airlines d) alaska airlines e) delta airlines f) air france g) southwest airlines h) air canada destination=sf [context] [user] i need a flight for the 11th of march for 3 people. [system] where would you like to go? what day would you like to return? what city would you like to depart from? [user] i want to fly on american airlines from mexico city to sfo. returning on the 13th [system] i have 1 flight for youon american airlines departing at 2:55 pm and the returning flight departs at 1:20 pm. the total tick cost is $171. [user] what airport does it leave from? [system] it departs from benito juarez international airport. [user] ok i need a one way flight.
State: [state] passengers=d origin=mexico city return_date=the 13th seating_class=none departure_date=11th of march airlines=b destination=sfo

[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 return_date=the 13th destination=sf passengers=a of possible values a) 1 b) 4 c) 3 d) 2 seating_class=b of possible values a) first class b) economy c) business d) premium economy departure_date=9th of this month airlines=d of possible values a) united airlines b) alaska airlines c) air france d) delta airlines e) southwest airlines f) air canada g) american airlines h) british airways [context] [user] i need a flight for the 11th of march for 3 people. [system] where would you like to go? what day would you like to return? what city would you like to depart from? [user] i want to fly on american airlines from mexico city to sfo. returning on the 13th [system] i have 1 flight for youon american airlines departing at 2:55 pm and the returning flight departs at 1:20 pm. the total tick cost is $171. [user] what airport does it leave from? [system] it departs from benito juarez international airport. [user] ok i need a one way flight. [system] i have 1 direct flight on american airlines taking off at 2:55 pm with 0 stops. the total cost is $143. [user] what airport does it depart from?
State: [state] origin=mexico city return_date=the 13th destination=sfo passengers=c seating_class=none departure_date=11th of march airlines=g

[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) business b) premium economy c) first class d) economy origin=seattle destination=sf passengers=b of possible values a) 3 b) 1 c) 4 d) 2 airlines=d of possible values a) southwest airlines b) american airlines c) air france d) delta airlines e) british airways f) air canada g) alaska airlines h) united airlines [context] [user] i need a flight for the 11th of march for 3 people. [system] where would you like to go? what day would you like to return? what city would you like to depart from? [user] i want to fly on american airlines from mexico city to sfo. returning on the 13th [system] i have 1 flight for youon american airlines departing at 2:55 pm and the returning flight departs at 1:20 pm. the total tick cost is $171. [user] what airport does it leave from? [system] it departs from benito juarez international airport. [user] ok i need a one way flight. [system] i have 1 direct flight on american airlines taking off at 2:55 pm with 0 stops. the total cost is $143. [user] what airport does it depart from? [system] it departs from benito juarez international airport. [user] ok that sounds good.
State: [state] return_date=the 13th departure_date=11th of march seating_class=none origin=mexico city destination=sfo passengers=a airlines=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] airlines=c of possible values a) british airways b) united airlines c) delta airlines d) air france e) alaska airlines f) air canada g) american airlines h) southwest airlines return_date=the 13th origin=seattle destination=sf seating_class=c of possible values a) premium economy b) business c) economy d) first class departure_date=9th of this month passengers=a of possible values a) 1 b) 2 c) 3 d) 4 [context] [user] i need a flight for the 11th of march for 3 people. [system] where would you like to go? what day would you like to return? what city would you like to depart from? [user] i want to fly on american airlines from mexico city to sfo. returning on the 13th [system] i have 1 flight for youon american airlines departing at 2:55 pm and the returning flight departs at 1:20 pm. the total tick cost is $171. [user] what airport does it leave from? [system] it departs from benito juarez international airport. [user] ok i need a one way flight. [system] i have 1 direct flight on american airlines taking off at 2:55 pm with 0 stops. the total cost is $143. [user] what airport does it depart from? [system] it departs from benito juarez international airport. [user] ok that sounds good. [system] is there anything else i can help you with? [user] no that will be all.
State: [state] airlines=g return_date=the 13th origin=mexico city destination=sfo seating_class=none departure_date=11th of march passengers=c