[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 origin=seattle departure_date=9th of this month seating_class=b of possible values a) premium economy b) economy c) business d) first class airlines=h of possible values a) air france b) southwest airlines c) air canada d) british airways e) alaska airlines f) american airlines g) united airlines h) delta airlines passengers=a of possible values a) 1 b) 3 c) 4 d) 2 destination=sf [context] [user] i'm looking to book a flight to atl.
State: [state] return_date=none origin=none departure_date=none seating_class=none airlines=none passengers=none destination=atl

[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) business b) economy c) first class d) premium economy return_date=the 13th passengers=d of possible values a) 2 b) 4 c) 3 d) 1 origin=seattle departure_date=9th of this month airlines=c of possible values a) air france b) southwest airlines c) delta airlines d) united airlines e) alaska airlines f) american airlines g) british airways h) air canada [context] [user] i'm looking to book a flight to atl. [system] sure. can i get the dates you'd like to depart and return? what city are you traveling from? [user] i'll be departing from portland, or. departing on the 1st of march and returning on the 10th of march please.
State: [state] destination=atl seating_class=none return_date=10th of march passengers=none origin=portland, or departure_date=1st of march 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] origin=seattle airlines=a of possible values a) delta airlines b) british airways c) air canada d) american airlines e) air france f) united airlines g) southwest airlines h) alaska airlines return_date=the 13th seating_class=c of possible values a) first class b) premium economy c) economy d) business departure_date=9th of this month passengers=d of possible values a) 4 b) 2 c) 3 d) 1 destination=sf [context] [user] i'm looking to book a flight to atl. [system] sure. can i get the dates you'd like to depart and return? what city are you traveling from? [user] i'll be departing from portland, or. departing on the 1st of march and returning on the 10th of march please. [system] i found 2 flights. how about this flight on southwest airlines. it departs at 4:55 pm and the return departs at 1:30 pm. seats cost $310. [user] thanks, that's good for now.
State: [state] origin=portland, or airlines=g return_date=10th of march seating_class=none departure_date=1st of march passengers=none destination=atl