[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) air canada b) delta airlines c) british airways d) united airlines e) southwest airlines f) alaska airlines g) air france h) american airlines departure_date=9th of this month destination=sf origin=seattle seating_class=a of possible values a) economy b) premium economy c) business d) first class return_date=the 13th passengers=b of possible values a) 2 b) 1 c) 3 d) 4 [context] [user] i would like to find a one way flight.
State: [state] airlines=none departure_date=none destination=none origin=none seating_class=none return_date=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] destination=sf airlines=g of possible values a) british airways b) alaska airlines c) united airlines d) air france e) southwest airlines f) american airlines g) delta airlines h) air canada departure_date=9th of this month return_date=the 13th passengers=c of possible values a) 4 b) 3 c) 1 d) 2 origin=seattle seating_class=b of possible values a) first class b) economy c) business d) premium economy [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week.
State: [state] destination=san diego airlines=none departure_date=thursday next week return_date=none passengers=none origin=vancouver, bc seating_class=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 destination=sf airlines=d of possible values a) united airlines b) american airlines c) air canada d) delta airlines e) alaska airlines f) southwest airlines g) air france h) british airways passengers=a of possible values a) 1 b) 4 c) 2 d) 3 departure_date=9th of this month seating_class=a of possible values a) economy b) premium economy c) first class d) business [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find?
State: [state] origin=vancouver, bc return_date=none destination=san diego airlines=none passengers=c departure_date=thursday next week seating_class=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=a of possible values a) 1 b) 2 c) 3 d) 4 airlines=b of possible values a) southwest airlines b) delta airlines c) alaska airlines d) american airlines e) united airlines f) air canada g) air france h) british airways return_date=the 13th departure_date=9th of this month destination=sf seating_class=c of possible values a) business b) first class c) economy d) premium economy [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find? [system] delta airlines has a flight with 1 stop for $207 leaving at 3:20 am. [user] is this a redeye flight? when does it arrive at my destination?
State: [state] origin=vancouver, bc passengers=b airlines=none return_date=none departure_date=thursday next week destination=san diego seating_class=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] departure_date=9th of this month seating_class=b of possible values a) premium economy b) economy c) first class d) business passengers=d of possible values a) 4 b) 3 c) 2 d) 1 return_date=the 13th airlines=f of possible values a) alaska airlines b) southwest airlines c) united airlines d) american airlines e) british airways f) delta airlines g) air canada h) air france destination=sf origin=seattle [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find? [system] delta airlines has a flight with 1 stop for $207 leaving at 3:20 am. [user] is this a redeye flight? when does it arrive at my destination? [system] it is not an overnight flight. it arrives at 8:34 am. [user] let's talk about the return flight.
State: [state] departure_date=thursday next week seating_class=none passengers=c return_date=none airlines=f destination=san diego origin=vancouver, bc

[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=c of possible values a) 2 b) 3 c) 1 d) 4 departure_date=9th of this month return_date=the 13th airlines=a of possible values a) delta airlines b) american airlines c) united airlines d) southwest airlines e) british airways f) air france g) alaska airlines h) air canada seating_class=c of possible values a) business b) premium economy c) economy d) first class destination=sf [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find? [system] delta airlines has a flight with 1 stop for $207 leaving at 3:20 am. [user] is this a redeye flight? when does it arrive at my destination? [system] it is not an overnight flight. it arrives at 8:34 am. [user] let's talk about the return flight. [system] which day would you like to take the return flight? [user] i would like to return march 9th.
State: [state] origin=vancouver, bc passengers=a departure_date=thursday next week return_date=march 9th airlines=a seating_class=none destination=san diego

[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) premium economy b) business c) first class d) economy passengers=a of possible values a) 1 b) 3 c) 2 d) 4 departure_date=9th of this month return_date=the 13th airlines=c of possible values a) united airlines b) british airways c) delta airlines d) southwest airlines e) alaska airlines f) american airlines g) air canada h) air france origin=seattle destination=sf [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find? [system] delta airlines has a flight with 1 stop for $207 leaving at 3:20 am. [user] is this a redeye flight? when does it arrive at my destination? [system] it is not an overnight flight. it arrives at 8:34 am. [user] let's talk about the return flight. [system] which day would you like to take the return flight? [user] i would like to return march 9th. [system] i found 1 flight. delta airlines has a flight that takes off at 3:20 am and returns at 11:05 am for $221. [user] is it a redeye flight?
State: [state] seating_class=none passengers=c departure_date=thursday next week return_date=march 9th airlines=c origin=vancouver, bc destination=san diego

[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 passengers=d of possible values a) 3 b) 2 c) 4 d) 1 origin=seattle airlines=a of possible values a) delta airlines b) american airlines c) alaska airlines d) british airways e) united airlines f) air france g) air canada h) southwest airlines destination=sf return_date=the 13th seating_class=a of possible values a) economy b) business c) premium economy d) first class [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find? [system] delta airlines has a flight with 1 stop for $207 leaving at 3:20 am. [user] is this a redeye flight? when does it arrive at my destination? [system] it is not an overnight flight. it arrives at 8:34 am. [user] let's talk about the return flight. [system] which day would you like to take the return flight? [user] i would like to return march 9th. [system] i found 1 flight. delta airlines has a flight that takes off at 3:20 am and returns at 11:05 am for $221. [user] is it a redeye flight? [system] it is not an overnight flight. [user] which airport does the flight leave from? is the ticket economy or business class?
State: [state] departure_date=thursday next week passengers=b origin=vancouver, bc airlines=a destination=san diego return_date=march 9th seating_class=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) premium economy b) economy c) business d) first class passengers=b of possible values a) 2 b) 1 c) 3 d) 4 airlines=d of possible values a) air france b) british airways c) united airlines d) delta airlines e) alaska airlines f) air canada g) american airlines h) southwest airlines origin=seattle return_date=the 13th departure_date=9th of this month [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find? [system] delta airlines has a flight with 1 stop for $207 leaving at 3:20 am. [user] is this a redeye flight? when does it arrive at my destination? [system] it is not an overnight flight. it arrives at 8:34 am. [user] let's talk about the return flight. [system] which day would you like to take the return flight? [user] i would like to return march 9th. [system] i found 1 flight. delta airlines has a flight that takes off at 3:20 am and returns at 11:05 am for $221. [user] is it a redeye flight? [system] it is not an overnight flight. [user] which airport does the flight leave from? is the ticket economy or business class? [system] the flight takes off from yvr international airport. it is an economy seat. [user] ok.
State: [state] destination=san diego seating_class=none passengers=a airlines=d origin=vancouver, bc return_date=march 9th departure_date=thursday next week

[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=a of possible values a) economy b) first class c) premium economy d) business airlines=e of possible values a) air canada b) air france c) united airlines d) british airways e) delta airlines f) alaska airlines g) southwest airlines h) american airlines passengers=c of possible values a) 3 b) 4 c) 1 d) 2 origin=seattle destination=sf departure_date=9th of this month [context] [user] i would like to find a one way flight. [system] where are you departing from and traveling to? on what date would you like to travel? [user] i am looking to fly from vancouver, bc to san diego on thursday next week. [system] i found 2 flights. air canada has a flight for $204 with 1 stop that departs at 4:45 pm. [user] i am looking for two tickets. what else did you find? [system] delta airlines has a flight with 1 stop for $207 leaving at 3:20 am. [user] is this a redeye flight? when does it arrive at my destination? [system] it is not an overnight flight. it arrives at 8:34 am. [user] let's talk about the return flight. [system] which day would you like to take the return flight? [user] i would like to return march 9th. [system] i found 1 flight. delta airlines has a flight that takes off at 3:20 am and returns at 11:05 am for $221. [user] is it a redeye flight? [system] it is not an overnight flight. [user] which airport does the flight leave from? is the ticket economy or business class? [system] the flight takes off from yvr international airport. it is an economy seat. [user] ok. [system] is there anything else i can help you with? [user] no, thank you for your help.
State: [state] return_date=march 9th seating_class=none airlines=e passengers=d origin=vancouver, bc destination=san diego departure_date=thursday next week