[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 passengers=b of possible values a) 4 b) 1 c) 3 d) 2 seating_class=c of possible values a) premium economy b) business c) economy d) first class departure_date=9th of this month origin=seattle airlines=g of possible values a) alaska airlines b) british airways c) united airlines d) southwest airlines e) air canada f) air france g) delta airlines h) american airlines return_date=the 13th [context] [user] i'm going on a trip. i need three premium economy tickets for a one-way trip.
State: [state] destination=none passengers=c seating_class=a departure_date=none origin=none airlines=none return_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] airlines=g of possible values a) air canada b) american airlines c) british airways d) air france e) united airlines f) southwest airlines g) delta airlines h) alaska airlines origin=seattle departure_date=9th of this month destination=sf passengers=b of possible values a) 2 b) 1 c) 4 d) 3 return_date=the 13th seating_class=d of possible values a) business b) first class c) premium economy d) economy [context] [user] i'm going on a trip. i need three premium economy tickets for a one-way trip. [system] sure. where are you going? and what city are you leaving from? [user] i'm going to los angeles from ciudad de mexico.
State: [state] airlines=none origin=ciudad de mexico departure_date=none destination=los angeles passengers=d return_date=none seating_class=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=b of possible values a) british airways b) delta airlines c) alaska airlines d) air france e) air canada f) american airlines g) united airlines h) southwest airlines destination=sf passengers=c of possible values a) 3 b) 4 c) 1 d) 2 origin=seattle return_date=the 13th departure_date=9th of this month seating_class=c of possible values a) business b) premium economy c) economy d) first class [context] [user] i'm going on a trip. i need three premium economy tickets for a one-way trip. [system] sure. where are you going? and what city are you leaving from? [user] i'm going to los angeles from ciudad de mexico. [system] when is your trip? [user] the 11th of this month. ah, but, make that just two pickets.
State: [state] airlines=none destination=los angeles passengers=d origin=ciudad de mexico return_date=none departure_date=11th of this month seating_class=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] passengers=a of possible values a) 1 b) 3 c) 2 d) 4 airlines=g of possible values a) air canada b) air france c) american airlines d) british airways e) alaska airlines f) southwest airlines g) delta airlines h) united airlines return_date=the 13th seating_class=a of possible values a) economy b) first class c) business d) premium economy origin=seattle departure_date=9th of this month destination=sf [context] [user] i'm going on a trip. i need three premium economy tickets for a one-way trip. [system] sure. where are you going? and what city are you leaving from? [user] i'm going to los angeles from ciudad de mexico. [system] when is your trip? [user] the 11th of this month. ah, but, make that just two pickets. [system] there is 1 american airlines flight which leaves at 8:05 am. it has 0 stops and costs $215. [user] what airport does this take me to? is it an overnight flight?
State: [state] passengers=c airlines=none return_date=none seating_class=d origin=ciudad de mexico departure_date=11th of this month destination=los angeles

[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) 2 c) 3 d) 4 seating_class=c of possible values a) premium economy b) first class c) economy d) business origin=seattle airlines=g of possible values a) british airways b) american airlines c) southwest airlines d) united airlines e) air canada f) alaska airlines g) delta airlines h) air france departure_date=9th of this month return_date=the 13th destination=sf [context] [user] i'm going on a trip. i need three premium economy tickets for a one-way trip. [system] sure. where are you going? and what city are you leaving from? [user] i'm going to los angeles from ciudad de mexico. [system] when is your trip? [user] the 11th of this month. ah, but, make that just two pickets. [system] there is 1 american airlines flight which leaves at 8:05 am. it has 0 stops and costs $215. [user] what airport does this take me to? is it an overnight flight? [system] you arrive at lax international airport on the same day you depart. [user] sounds good, but can you change that to a round-trip? i want to be back on the 13th of march.
State: [state] passengers=b seating_class=a origin=ciudad de mexico airlines=b departure_date=11th of this month return_date=13th of march destination=los angeles

[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 airlines=e of possible values a) british airways b) air canada c) alaska airlines d) southwest airlines e) delta airlines f) united airlines g) air france h) american airlines origin=seattle passengers=a of possible values a) 1 b) 3 c) 2 d) 4 destination=sf seating_class=b of possible values a) business b) economy c) premium economy d) first class [context] [user] i'm going on a trip. i need three premium economy tickets for a one-way trip. [system] sure. where are you going? and what city are you leaving from? [user] i'm going to los angeles from ciudad de mexico. [system] when is your trip? [user] the 11th of this month. ah, but, make that just two pickets. [system] there is 1 american airlines flight which leaves at 8:05 am. it has 0 stops and costs $215. [user] what airport does this take me to? is it an overnight flight? [system] you arrive at lax international airport on the same day you depart. [user] sounds good, but can you change that to a round-trip? i want to be back on the 13th of march. [system] there is 1 american airlines flight which leaves at 8:05 am and costs $235. the flight which brings you back leaves at 2:45 pm. [user] perfect.
State: [state] return_date=13th of march departure_date=11th of this month airlines=h origin=ciudad de mexico passengers=c destination=los angeles seating_class=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] destination=sf airlines=e of possible values a) air france b) united airlines c) southwest airlines d) air canada e) delta airlines f) alaska airlines g) british airways h) american airlines passengers=d of possible values a) 2 b) 4 c) 3 d) 1 return_date=the 13th seating_class=a of possible values a) economy b) premium economy c) first class d) business departure_date=9th of this month origin=seattle [context] [user] i'm going on a trip. i need three premium economy tickets for a one-way trip. [system] sure. where are you going? and what city are you leaving from? [user] i'm going to los angeles from ciudad de mexico. [system] when is your trip? [user] the 11th of this month. ah, but, make that just two pickets. [system] there is 1 american airlines flight which leaves at 8:05 am. it has 0 stops and costs $215. [user] what airport does this take me to? is it an overnight flight? [system] you arrive at lax international airport on the same day you depart. [user] sounds good, but can you change that to a round-trip? i want to be back on the 13th of march. [system] there is 1 american airlines flight which leaves at 8:05 am and costs $235. the flight which brings you back leaves at 2:45 pm. [user] perfect. [system] do you want anything else? [user] that's all, thanks.
State: [state] destination=los angeles airlines=h passengers=a return_date=13th of march seating_class=b departure_date=11th of this month origin=ciudad de mexico