[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) business b) premium economy c) first class d) economy departure_date=9th of this month passengers=b of possible values a) 2 b) 1 c) 4 d) 3 airlines=f of possible values a) united airlines b) alaska airlines c) air canada d) air france e) southwest airlines f) delta airlines g) british airways h) american airlines origin=seattle return_date=the 13th destination=sf [context] [user] i would like to book a one way flight on the 11th march. do you have any deals next week?
State: [state] seating_class=none departure_date=the 11th passengers=none airlines=none origin=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] origin=seattle seating_class=a of possible values a) economy b) premium economy c) first class d) business destination=sf return_date=the 13th airlines=c of possible values a) united airlines b) british airways c) delta airlines d) air france e) air canada f) southwest airlines g) american airlines h) alaska airlines 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 book a one way flight on the 11th march. do you have any deals next week? [system] sorry, for time being there is no deal. i am happy to assist you. where are you flying to? [user] i will be travelling to vancouver, bc.
State: [state] origin=none seating_class=none destination=vancouver, bc return_date=none airlines=none passengers=none 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] airlines=c of possible values a) united airlines b) air france c) delta airlines d) air canada e) american airlines f) southwest airlines g) british airways h) alaska airlines departure_date=9th of this month destination=sf seating_class=c of possible values a) premium economy b) business c) economy d) first class passengers=d of possible values a) 4 b) 3 c) 2 d) 1 return_date=the 13th origin=seattle [context] [user] i would like to book a one way flight on the 11th march. do you have any deals next week? [system] sorry, for time being there is no deal. i am happy to assist you. where are you flying to? [user] i will be travelling to vancouver, bc. [system] to reach that destination, you can leave from las vegas. do you wish to book your ticket from that city for your departure? [user] yup! please book the flights from las vegas.
State: [state] airlines=none departure_date=the 11th destination=vancouver, bc seating_class=none passengers=none return_date=none origin=las 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] seating_class=b of possible values a) first class b) economy c) premium economy d) business origin=seattle passengers=b of possible values a) 4 b) 1 c) 3 d) 2 destination=sf return_date=the 13th airlines=h of possible values a) southwest airlines b) united airlines c) british airways d) air france e) american airlines f) air canada g) alaska airlines h) delta airlines departure_date=9th of this month [context] [user] i would like to book a one way flight on the 11th march. do you have any deals next week? [system] sorry, for time being there is no deal. i am happy to assist you. where are you flying to? [user] i will be travelling to vancouver, bc. [system] to reach that destination, you can leave from las vegas. do you wish to book your ticket from that city for your departure? [user] yup! please book the flights from las vegas. [system] sure. would you prefer to travel with american airlines and you can leave by morning at 9:30 am. it has 1 stops and this is the good one among the 4 flights i found for you. it would cost $199 for your travel. do you want me to continue with booking? [user] sorry. please can you look with delta airlines for i want to travel a little bit late. i need only one ticket.
State: [state] seating_class=none origin=las vegas passengers=b destination=vancouver, bc return_date=none airlines=h 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] return_date=the 13th passengers=b of possible values a) 3 b) 1 c) 4 d) 2 seating_class=b of possible values a) business b) economy c) premium economy d) first class destination=sf departure_date=9th of this month origin=seattle airlines=c of possible values a) air france b) alaska airlines c) delta airlines d) air canada e) southwest airlines f) british airways g) united airlines h) american airlines [context] [user] i would like to book a one way flight on the 11th march. do you have any deals next week? [system] sorry, for time being there is no deal. i am happy to assist you. where are you flying to? [user] i will be travelling to vancouver, bc. [system] to reach that destination, you can leave from las vegas. do you wish to book your ticket from that city for your departure? [user] yup! please book the flights from las vegas. [system] sure. would you prefer to travel with american airlines and you can leave by morning at 9:30 am. it has 1 stops and this is the good one among the 4 flights i found for you. it would cost $199 for your travel. do you want me to continue with booking? [user] sorry. please can you look with delta airlines for i want to travel a little bit late. i need only one ticket. [system] sure. can i book with delta airlines that takes off at 12:20 pm which has only 1 stops. i think this is the best 1 flight i can find for you. your travel cost will be around $211. [user] fine. is round trip available with that flight?
State: [state] return_date=none passengers=b seating_class=none destination=vancouver, bc departure_date=the 11th origin=las vegas airlines=c

[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=a of possible values a) delta airlines b) united airlines c) southwest airlines d) air canada e) alaska airlines f) british airways g) air france h) american airlines return_date=the 13th destination=sf seating_class=a of possible values a) economy b) premium economy c) first class d) business origin=seattle departure_date=9th of this month passengers=a of possible values a) 1 b) 3 c) 2 d) 4 [context] [user] i would like to book a one way flight on the 11th march. do you have any deals next week? [system] sorry, for time being there is no deal. i am happy to assist you. where are you flying to? [user] i will be travelling to vancouver, bc. [system] to reach that destination, you can leave from las vegas. do you wish to book your ticket from that city for your departure? [user] yup! please book the flights from las vegas. [system] sure. would you prefer to travel with american airlines and you can leave by morning at 9:30 am. it has 1 stops and this is the good one among the 4 flights i found for you. it would cost $199 for your travel. do you want me to continue with booking? [user] sorry. please can you look with delta airlines for i want to travel a little bit late. i need only one ticket. [system] sure. can i book with delta airlines that takes off at 12:20 pm which has only 1 stops. i think this is the best 1 flight i can find for you. your travel cost will be around $211. [user] fine. is round trip available with that flight? [system] i think there is a return flight available. on which day you prefer? either a morning or evening return? [user] i would prefer to return in the early morning on 13th of this month and if there is a ticket available in economy class, it would be good.
State: [state] airlines=a return_date=13th of this month destination=vancouver, bc seating_class=a origin=las vegas departure_date=the 11th 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] seating_class=d of possible values a) business b) first class c) premium economy d) economy airlines=a of possible values a) delta airlines b) british airways c) air canada d) southwest airlines e) american airlines f) air france g) united airlines h) alaska airlines departure_date=9th of this month return_date=the 13th origin=seattle destination=sf passengers=d of possible values a) 4 b) 2 c) 3 d) 1 [context] [user] i would like to book a one way flight on the 11th march. do you have any deals next week? [system] sorry, for time being there is no deal. i am happy to assist you. where are you flying to? [user] i will be travelling to vancouver, bc. [system] to reach that destination, you can leave from las vegas. do you wish to book your ticket from that city for your departure? [user] yup! please book the flights from las vegas. [system] sure. would you prefer to travel with american airlines and you can leave by morning at 9:30 am. it has 1 stops and this is the good one among the 4 flights i found for you. it would cost $199 for your travel. do you want me to continue with booking? [user] sorry. please can you look with delta airlines for i want to travel a little bit late. i need only one ticket. [system] sure. can i book with delta airlines that takes off at 12:20 pm which has only 1 stops. i think this is the best 1 flight i can find for you. your travel cost will be around $211. [user] fine. is round trip available with that flight? [system] i think there is a return flight available. on which day you prefer? either a morning or evening return? [user] i would prefer to return in the early morning on 13th of this month and if there is a ticket available in economy class, it would be good. [system] i can find 1 flight for you with delta airlines that takes off at 12:20 pm and the return take off will be at 3:20 am. $225 would be the total cost including tax. do you want me to continue with booking? [user] yup.
State: [state] seating_class=d airlines=a departure_date=the 11th return_date=13th of this month origin=las vegas destination=vancouver, bc 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] return_date=the 13th destination=sf passengers=d of possible values a) 4 b) 2 c) 3 d) 1 origin=seattle seating_class=d of possible values a) premium economy b) first class c) business d) economy airlines=f of possible values a) united airlines b) alaska airlines c) british airways d) air france e) air canada f) delta airlines g) american airlines h) southwest airlines departure_date=9th of this month [context] [user] i would like to book a one way flight on the 11th march. do you have any deals next week? [system] sorry, for time being there is no deal. i am happy to assist you. where are you flying to? [user] i will be travelling to vancouver, bc. [system] to reach that destination, you can leave from las vegas. do you wish to book your ticket from that city for your departure? [user] yup! please book the flights from las vegas. [system] sure. would you prefer to travel with american airlines and you can leave by morning at 9:30 am. it has 1 stops and this is the good one among the 4 flights i found for you. it would cost $199 for your travel. do you want me to continue with booking? [user] sorry. please can you look with delta airlines for i want to travel a little bit late. i need only one ticket. [system] sure. can i book with delta airlines that takes off at 12:20 pm which has only 1 stops. i think this is the best 1 flight i can find for you. your travel cost will be around $211. [user] fine. is round trip available with that flight? [system] i think there is a return flight available. on which day you prefer? either a morning or evening return? [user] i would prefer to return in the early morning on 13th of this month and if there is a ticket available in economy class, it would be good. [system] i can find 1 flight for you with delta airlines that takes off at 12:20 pm and the return take off will be at 3:20 am. $225 would be the total cost including tax. do you want me to continue with booking? [user] yup. [system] is there anything to help with? [user] nope, thanks much for your help.
State: [state] return_date=13th of this month destination=vancouver, bc passengers=d origin=las vegas seating_class=d airlines=f departure_date=the 11th