[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 airlines=g of possible values a) american airlines b) british airways c) southwest airlines d) united airlines e) air canada f) air france g) delta airlines h) alaska airlines seating_class=c of possible values a) first class b) business c) economy d) premium economy return_date=the 13th passengers=b of possible values a) 3 b) 1 c) 4 d) 2 destination=sf origin=seattle [context] [user] i need to book an airline reservation.
State: [state] departure_date=none airlines=none seating_class=none return_date=none passengers=none destination=none origin=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=c of possible values a) air france b) alaska airlines c) delta airlines d) british airways e) american airlines f) united airlines g) southwest airlines h) air canada return_date=the 13th seating_class=d of possible values a) first class b) premium economy c) business d) economy passengers=d of possible values a) 3 b) 4 c) 2 d) 1 origin=seattle destination=sf departure_date=9th of this month [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th.
State: [state] airlines=none return_date=the 9th seating_class=none passengers=none origin=los angeles destination=chi-town departure_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] return_date=the 13th airlines=e of possible values a) southwest airlines b) united airlines c) air canada d) air france e) delta airlines f) alaska airlines g) american airlines h) british airways seating_class=a of possible values a) economy b) premium economy c) first class d) business origin=seattle passengers=c of possible values a) 3 b) 4 c) 1 d) 2 destination=sf departure_date=9th of this month [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th. [system] and when do you wish to fly? [user] this saturday. any airline is fine.
State: [state] return_date=the 9th airlines=dontcare seating_class=none origin=los angeles passengers=none destination=chi-town departure_date=this saturday

[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) southwest airlines b) british airways c) delta airlines d) american airlines e) united airlines f) air france g) alaska airlines h) air canada destination=sf passengers=d of possible values a) 3 b) 2 c) 4 d) 1 departure_date=9th of this month return_date=the 13th seating_class=d of possible values a) first class b) business c) premium economy d) economy origin=seattle [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th. [system] and when do you wish to fly? [user] this saturday. any airline is fine. [system] the are 3 flights available. american airlines has a flight at 8:30 am and the return flight leaves at 4:30 am. the round-trip fair is $164. [user] what are the other options. is there an economy class fare?
State: [state] airlines=dontcare destination=chi-town passengers=none departure_date=this saturday return_date=the 9th seating_class=d origin=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] destination=sf origin=seattle return_date=the 13th departure_date=9th of this month airlines=d of possible values a) united airlines b) alaska airlines c) british airways d) delta airlines e) air france f) air canada g) american airlines h) southwest airlines seating_class=b of possible values a) premium economy b) economy c) first class d) business passengers=a of possible values a) 1 b) 2 c) 4 d) 3 [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th. [system] and when do you wish to fly? [user] this saturday. any airline is fine. [system] the are 3 flights available. american airlines has a flight at 8:30 am and the return flight leaves at 4:30 am. the round-trip fair is $164. [user] what are the other options. is there an economy class fare? [system] there are 2 flights available. delta airlines has a flight that leaves at 7:15 pm, with a return flight at 5:25 pm for $167. [user] let's change it to portland, or. i just need 1 ticket.
State: [state] destination=portland, or origin=los angeles return_date=the 9th departure_date=this saturday airlines=dontcare seating_class=b 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=a of possible values a) economy b) business c) premium economy d) first class passengers=a of possible values a) 1 b) 2 c) 3 d) 4 origin=seattle departure_date=9th of this month airlines=g of possible values a) air canada b) british airways c) alaska airlines d) american airlines e) united airlines f) southwest airlines g) delta airlines h) air france return_date=the 13th destination=sf [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th. [system] and when do you wish to fly? [user] this saturday. any airline is fine. [system] the are 3 flights available. american airlines has a flight at 8:30 am and the return flight leaves at 4:30 am. the round-trip fair is $164. [user] what are the other options. is there an economy class fare? [system] there are 2 flights available. delta airlines has a flight that leaves at 7:15 pm, with a return flight at 5:25 pm for $167. [user] let's change it to portland, or. i just need 1 ticket. [system] there are 3 flights available. alaska airlines has a flight that leaves at 7:25 am, with a return flight at 1:55 pm for $178. [user] that sounds like a redeye. when does the reutrn flight arrive.
State: [state] seating_class=a passengers=a origin=los angeles departure_date=this saturday airlines=dontcare return_date=the 9th 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 destination=sf seating_class=c of possible values a) first class b) business c) economy d) premium economy airlines=d of possible values a) united airlines b) alaska airlines c) air france d) delta airlines e) american airlines f) british airways g) southwest airlines h) air canada passengers=b of possible values a) 2 b) 1 c) 3 d) 4 origin=seattle departure_date=9th of this month [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th. [system] and when do you wish to fly? [user] this saturday. any airline is fine. [system] the are 3 flights available. american airlines has a flight at 8:30 am and the return flight leaves at 4:30 am. the round-trip fair is $164. [user] what are the other options. is there an economy class fare? [system] there are 2 flights available. delta airlines has a flight that leaves at 7:15 pm, with a return flight at 5:25 pm for $167. [user] let's change it to portland, or. i just need 1 ticket. [system] there are 3 flights available. alaska airlines has a flight that leaves at 7:25 am, with a return flight at 1:55 pm for $178. [user] that sounds like a redeye. when does the reutrn flight arrive. [system] there is no overnight flight. the return flight arrives at 5:54 pm. [user] ok. how about just 1 way.
State: [state] return_date=the 9th destination=portland, or seating_class=c airlines=b passengers=b origin=los angeles departure_date=this saturday

[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 airlines=h of possible values a) air france b) southwest airlines c) american airlines d) united airlines e) air canada f) british airways g) alaska airlines h) delta airlines departure_date=9th of this month seating_class=a of possible values a) economy b) first class c) business d) premium economy passengers=d of possible values a) 4 b) 2 c) 3 d) 1 [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th. [system] and when do you wish to fly? [user] this saturday. any airline is fine. [system] the are 3 flights available. american airlines has a flight at 8:30 am and the return flight leaves at 4:30 am. the round-trip fair is $164. [user] what are the other options. is there an economy class fare? [system] there are 2 flights available. delta airlines has a flight that leaves at 7:15 pm, with a return flight at 5:25 pm for $167. [user] let's change it to portland, or. i just need 1 ticket. [system] there are 3 flights available. alaska airlines has a flight that leaves at 7:25 am, with a return flight at 1:55 pm for $178. [user] that sounds like a redeye. when does the reutrn flight arrive. [system] there is no overnight flight. the return flight arrives at 5:54 pm. [user] ok. how about just 1 way. [system] there is 1 flights available. alaska airlines has a flight that leaves at 7:25 am, with 0 stops for $133. [user] i'll think about that.
State: [state] destination=portland, or origin=los angeles return_date=the 9th airlines=g departure_date=this saturday seating_class=a 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 seating_class=d of possible values a) premium economy b) business c) first class d) economy origin=seattle departure_date=9th of this month passengers=a of possible values a) 1 b) 3 c) 2 d) 4 airlines=a of possible values a) delta airlines b) southwest airlines c) air france d) british airways e) united airlines f) american airlines g) alaska airlines h) air canada destination=sf [context] [user] i need to book an airline reservation. [system] where will yoube traveling from, and where are you going? when do you need to return? [user] i will be flying from chi-town to los angeles. i'll need to come back on the 9th. [system] and when do you wish to fly? [user] this saturday. any airline is fine. [system] the are 3 flights available. american airlines has a flight at 8:30 am and the return flight leaves at 4:30 am. the round-trip fair is $164. [user] what are the other options. is there an economy class fare? [system] there are 2 flights available. delta airlines has a flight that leaves at 7:15 pm, with a return flight at 5:25 pm for $167. [user] let's change it to portland, or. i just need 1 ticket. [system] there are 3 flights available. alaska airlines has a flight that leaves at 7:25 am, with a return flight at 1:55 pm for $178. [user] that sounds like a redeye. when does the reutrn flight arrive. [system] there is no overnight flight. the return flight arrives at 5:54 pm. [user] ok. how about just 1 way. [system] there is 1 flights available. alaska airlines has a flight that leaves at 7:25 am, with 0 stops for $133. [user] i'll think about that. [system] will you need anything further? [user] not just now.
State: [state] return_date=the 9th seating_class=d origin=los angeles departure_date=this saturday passengers=a airlines=g destination=portland, or