[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 return_date=the 13th origin=seattle departure_date=9th of this month seating_class=b of possible values a) premium economy b) economy c) first class d) business airlines=a of possible values a) delta airlines b) air france c) british airways d) american airlines e) southwest airlines f) alaska airlines g) air canada h) united airlines destination=sf [context] [user] i want to book a flight for the 11th of this month.
State: [state] passengers=none return_date=none origin=none departure_date=11th of this month seating_class=none airlines=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 passengers=b of possible values a) 3 b) 1 c) 4 d) 2 destination=sf return_date=the 13th departure_date=9th of this month seating_class=a of possible values a) economy b) first class c) premium economy d) business airlines=a of possible values a) delta airlines b) air canada c) air france d) american airlines e) southwest airlines f) alaska airlines g) british airways h) united airlines [context] [user] i want to book a flight for the 11th of this month. [system] on with day would you like to return from which city? [user] i'll be returning from london, england on the 13th of march.
State: [state] origin=london, england passengers=none destination=none return_date=13th of march departure_date=11th of this month seating_class=none 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] destination=sf seating_class=b of possible values a) first class b) economy c) premium economy d) business origin=seattle departure_date=9th of this month return_date=the 13th airlines=e of possible values a) alaska airlines b) air france c) southwest airlines d) british airways e) delta airlines f) united airlines g) american airlines h) air canada passengers=b of possible values a) 2 b) 1 c) 4 d) 3 [context] [user] i want to book a flight for the 11th of this month. [system] on with day would you like to return from which city? [user] i'll be returning from london, england on the 13th of march. [system] do you have an itinerary? [user] i'd like to fly to philly.
State: [state] destination=philly seating_class=none origin=london, england departure_date=11th of this month return_date=13th of march airlines=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] origin=seattle return_date=the 13th passengers=d of possible values a) 3 b) 2 c) 4 d) 1 seating_class=b of possible values a) first class b) economy c) business d) premium economy departure_date=9th of this month airlines=b of possible values a) southwest airlines b) delta airlines c) alaska airlines d) air france e) british airways f) air canada g) american airlines h) united airlines destination=sf [context] [user] i want to book a flight for the 11th of this month. [system] on with day would you like to return from which city? [user] i'll be returning from london, england on the 13th of march. [system] do you have an itinerary? [user] i'd like to fly to philly. [system] i found 2 flights for you costing $361. flying with american airlines at 2:05 pm for take off and returning at 10:10 am. [user] is there anything else? i want two economy class tickets.
State: [state] origin=london, england return_date=13th of march passengers=b seating_class=b departure_date=11th of this month airlines=none destination=philly

[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=c of possible values a) first class b) business c) economy d) premium economy origin=seattle passengers=c of possible values a) 4 b) 3 c) 1 d) 2 destination=sf airlines=h of possible values a) american airlines b) air france c) british airways d) southwest airlines e) united airlines f) air canada g) alaska airlines h) delta airlines [context] [user] i want to book a flight for the 11th of this month. [system] on with day would you like to return from which city? [user] i'll be returning from london, england on the 13th of march. [system] do you have an itinerary? [user] i'd like to fly to philly. [system] i found 2 flights for you costing $361. flying with american airlines at 2:05 pm for take off and returning at 10:10 am. [user] is there anything else? i want two economy class tickets. [system] i found 1 flight with united airlines. take off is at 0:25 am and the return flight is at 12:55 pm. the cost is $290. [user] is this a redeye flight? what time does the return flight get in?
State: [state] return_date=13th of march departure_date=11th of this month seating_class=c origin=london, england passengers=d destination=philly 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] return_date=the 13th airlines=d of possible values a) united airlines b) american airlines c) air france d) delta airlines e) alaska airlines f) southwest airlines g) british airways h) air canada destination=sf departure_date=9th of this month passengers=a of possible values a) 1 b) 2 c) 4 d) 3 seating_class=b of possible values a) first class b) economy c) business d) premium economy origin=seattle [context] [user] i want to book a flight for the 11th of this month. [system] on with day would you like to return from which city? [user] i'll be returning from london, england on the 13th of march. [system] do you have an itinerary? [user] i'd like to fly to philly. [system] i found 2 flights for you costing $361. flying with american airlines at 2:05 pm for take off and returning at 10:10 am. [user] is there anything else? i want two economy class tickets. [system] i found 1 flight with united airlines. take off is at 0:25 am and the return flight is at 12:55 pm. the cost is $290. [user] is this a redeye flight? what time does the return flight get in? [system] the return flight arrives at 6:37 am so it is an overnight flight. [user] ok. i want to find a one way flight.
State: [state] return_date=13th of march airlines=a destination=philly departure_date=11th of this month passengers=b seating_class=b origin=london, england

[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 seating_class=b of possible values a) business b) economy c) premium economy d) first class airlines=b of possible values a) air france b) delta airlines c) alaska airlines d) united airlines e) british airways f) southwest airlines g) air canada h) american airlines destination=sf passengers=b of possible values a) 4 b) 1 c) 3 d) 2 origin=seattle return_date=the 13th [context] [user] i want to book a flight for the 11th of this month. [system] on with day would you like to return from which city? [user] i'll be returning from london, england on the 13th of march. [system] do you have an itinerary? [user] i'd like to fly to philly. [system] i found 2 flights for you costing $361. flying with american airlines at 2:05 pm for take off and returning at 10:10 am. [user] is there anything else? i want two economy class tickets. [system] i found 1 flight with united airlines. take off is at 0:25 am and the return flight is at 12:55 pm. the cost is $290. [user] is this a redeye flight? what time does the return flight get in? [system] the return flight arrives at 6:37 am so it is an overnight flight. [user] ok. i want to find a one way flight. [system] i found a flight costing $279 with united airlines. take off is at 0:25 am with 1 stop. [user] ok. thanks, that is all i need.
State: [state] departure_date=11th of this month seating_class=b airlines=d destination=philly passengers=d origin=london, england return_date=13th of march