[example] [user] please search flights for me. i m leaving from las vegas on the 6th of this month and coming back on the 9th of this month. [system] where are you going? [user] i am going to sd. there is only 1 in my group. make sure to book only refundable tickets. either business or economy is fine. [system] i found a convenient southwest airlines flight for your trip. it leaves at 3:10 pm and the return flight leaves at 8:25 pm. the ticket price is $95. [user] that flight sounds good to me. [slots] departure_date=6th of this month refundable=b of possible values a) false b) true seating_class=dontcare of possible values a) economy b) first class c) premium economy d) business outbound_departure_time=3:10 pm airlines=d of possible values a) air france b) british airways c) delta airlines d) southwest airlines e) alaska airlines f) united airlines g) american airlines h) air canada destination_city=sd return_date=9th of this month passengers=b of possible values a) 2 b) 1 c) 3 d) 4 origin_city=las vegas inbound_departure_time=8:25 pm [context] [user] i want to go travelling soon, can you help me buy a one-way flight?
State: [state] departure_date=none refundable=none seating_class=none outbound_departure_time=none airlines=none destination_city=none return_date=none passengers=none origin_city=none inbound_departure_time=none

[example] [user] please search flights for me. i m leaving from las vegas on the 6th of this month and coming back on the 9th of this month. [system] where are you going? [user] i am going to sd. there is only 1 in my group. make sure to book only refundable tickets. either business or economy is fine. [system] i found a convenient southwest airlines flight for your trip. it leaves at 3:10 pm and the return flight leaves at 8:25 pm. the ticket price is $95. [user] that flight sounds good to me. [slots] outbound_departure_time=3:10 pm departure_date=6th of this month destination_city=sd return_date=9th of this month refundable=a of possible values a) true b) false origin_city=las vegas seating_class=dontcare of possible values a) economy b) premium economy c) first class d) business airlines=c of possible values a) american airlines b) delta airlines c) southwest airlines d) alaska airlines e) united airlines f) air france g) air canada h) british airways passengers=b of possible values a) 3 b) 1 c) 2 d) 4 inbound_departure_time=8:25 pm [context] [user] i want to go travelling soon, can you help me buy a one-way flight? [system] where will you depart from? [user] i'll depart from san fran, in a group of three, and i need refundable tickets.
State: [state] outbound_departure_time=none departure_date=none destination_city=none return_date=none refundable=a origin_city=san fran seating_class=none airlines=none passengers=a inbound_departure_time=none

[example] [user] please search flights for me. i m leaving from las vegas on the 6th of this month and coming back on the 9th of this month. [system] where are you going? [user] i am going to sd. there is only 1 in my group. make sure to book only refundable tickets. either business or economy is fine. [system] i found a convenient southwest airlines flight for your trip. it leaves at 3:10 pm and the return flight leaves at 8:25 pm. the ticket price is $95. [user] that flight sounds good to me. [slots] inbound_departure_time=8:25 pm destination_city=sd origin_city=las vegas passengers=c of possible values a) 4 b) 2 c) 1 d) 3 outbound_departure_time=3:10 pm departure_date=6th of this month seating_class=dontcare of possible values a) business b) premium economy c) economy d) first class refundable=b of possible values a) false b) true airlines=b of possible values a) air france b) southwest airlines c) american airlines d) alaska airlines e) united airlines f) british airways g) delta airlines h) air canada return_date=9th of this month [context] [user] i want to go travelling soon, can you help me buy a one-way flight? [system] where will you depart from? [user] i'll depart from san fran, in a group of three, and i need refundable tickets. [system] when and where will you go? [user] i'll travel to las vegas on friday next week.
State: [state] inbound_departure_time=none destination_city=las vegas origin_city=san fran passengers=d outbound_departure_time=none departure_date=friday next week seating_class=none refundable=b airlines=none return_date=none

[example] [user] please search flights for me. i m leaving from las vegas on the 6th of this month and coming back on the 9th of this month. [system] where are you going? [user] i am going to sd. there is only 1 in my group. make sure to book only refundable tickets. either business or economy is fine. [system] i found a convenient southwest airlines flight for your trip. it leaves at 3:10 pm and the return flight leaves at 8:25 pm. the ticket price is $95. [user] that flight sounds good to me. [slots] origin_city=las vegas outbound_departure_time=3:10 pm airlines=a of possible values a) southwest airlines b) british airways c) united airlines d) alaska airlines e) american airlines f) air canada g) air france h) delta airlines inbound_departure_time=8:25 pm departure_date=6th of this month passengers=b of possible values a) 3 b) 1 c) 4 d) 2 return_date=9th of this month destination_city=sd refundable=b of possible values a) false b) true seating_class=dontcare of possible values a) premium economy b) economy c) first class d) business [context] [user] i want to go travelling soon, can you help me buy a one-way flight? [system] where will you depart from? [user] i'll depart from san fran, in a group of three, and i need refundable tickets. [system] when and where will you go? [user] i'll travel to las vegas on friday next week. [system] any preferred airline? [user] i'll firstly travel to nyc, and i prefer alaska airlines.
State: [state] origin_city=san fran outbound_departure_time=none airlines=d inbound_departure_time=none departure_date=friday next week passengers=a return_date=none destination_city=nyc refundable=b seating_class=none

[example] [user] please search flights for me. i m leaving from las vegas on the 6th of this month and coming back on the 9th of this month. [system] where are you going? [user] i am going to sd. there is only 1 in my group. make sure to book only refundable tickets. either business or economy is fine. [system] i found a convenient southwest airlines flight for your trip. it leaves at 3:10 pm and the return flight leaves at 8:25 pm. the ticket price is $95. [user] that flight sounds good to me. [slots] seating_class=dontcare of possible values a) premium economy b) business c) first class d) economy refundable=a of possible values a) true b) false airlines=f of possible values a) delta airlines b) united airlines c) air france d) alaska airlines e) british airways f) southwest airlines g) american airlines h) air canada destination_city=sd return_date=9th of this month outbound_departure_time=3:10 pm inbound_departure_time=8:25 pm departure_date=6th of this month origin_city=las vegas passengers=a of possible values a) 1 b) 4 c) 2 d) 3 [context] [user] i want to go travelling soon, can you help me buy a one-way flight? [system] where will you depart from? [user] i'll depart from san fran, in a group of three, and i need refundable tickets. [system] when and where will you go? [user] i'll travel to las vegas on friday next week. [system] any preferred airline? [user] i'll firstly travel to nyc, and i prefer alaska airlines. [system] so i can book a flight for 3 people in economy class, going from san francisco to new york with alaska airlines, departing next friday. is this okay? [user] no, i like to travel premium economy. can you search for american airlines flights?
State: [state] seating_class=a refundable=a airlines=g destination_city=nyc return_date=none outbound_departure_time=none inbound_departure_time=none departure_date=friday next week origin_city=san fran passengers=d

[example] [user] please search flights for me. i m leaving from las vegas on the 6th of this month and coming back on the 9th of this month. [system] where are you going? [user] i am going to sd. there is only 1 in my group. make sure to book only refundable tickets. either business or economy is fine. [system] i found a convenient southwest airlines flight for your trip. it leaves at 3:10 pm and the return flight leaves at 8:25 pm. the ticket price is $95. [user] that flight sounds good to me. [slots] passengers=c of possible values a) 4 b) 3 c) 1 d) 2 origin_city=las vegas inbound_departure_time=8:25 pm destination_city=sd departure_date=6th of this month airlines=b of possible values a) air canada b) southwest airlines c) air france d) american airlines e) united airlines f) alaska airlines g) delta airlines h) british airways return_date=9th of this month refundable=b of possible values a) false b) true outbound_departure_time=3:10 pm seating_class=dontcare of possible values a) first class b) economy c) business d) premium economy [context] [user] i want to go travelling soon, can you help me buy a one-way flight? [system] where will you depart from? [user] i'll depart from san fran, in a group of three, and i need refundable tickets. [system] when and where will you go? [user] i'll travel to las vegas on friday next week. [system] any preferred airline? [user] i'll firstly travel to nyc, and i prefer alaska airlines. [system] so i can book a flight for 3 people in economy class, going from san francisco to new york with alaska airlines, departing next friday. is this okay? [user] no, i like to travel premium economy. can you search for american airlines flights? [system] i'll update my search details with american airlines and premium economy, okay? [user] yes, that sounds good. which airport will i fly to first, and when will the onward flight arrive?
State: [state] passengers=b origin_city=san fran inbound_departure_time=none destination_city=nyc departure_date=friday next week airlines=d return_date=none refundable=b outbound_departure_time=none seating_class=d

[example] [user] please search flights for me. i m leaving from las vegas on the 6th of this month and coming back on the 9th of this month. [system] where are you going? [user] i am going to sd. there is only 1 in my group. make sure to book only refundable tickets. either business or economy is fine. [system] i found a convenient southwest airlines flight for your trip. it leaves at 3:10 pm and the return flight leaves at 8:25 pm. the ticket price is $95. [user] that flight sounds good to me. [slots] inbound_departure_time=8:25 pm airlines=e of possible values a) delta airlines b) united airlines c) air france d) british airways e) southwest airlines f) american airlines g) alaska airlines h) air canada outbound_departure_time=3:10 pm passengers=a of possible values a) 1 b) 2 c) 4 d) 3 refundable=a of possible values a) true b) false return_date=9th of this month departure_date=6th of this month seating_class=dontcare of possible values a) first class b) business c) premium economy d) economy destination_city=sd origin_city=las vegas [context] [user] i want to go travelling soon, can you help me buy a one-way flight? [system] where will you depart from? [user] i'll depart from san fran, in a group of three, and i need refundable tickets. [system] when and where will you go? [user] i'll travel to las vegas on friday next week. [system] any preferred airline? [user] i'll firstly travel to nyc, and i prefer alaska airlines. [system] so i can book a flight for 3 people in economy class, going from san francisco to new york with alaska airlines, departing next friday. is this okay? [user] no, i like to travel premium economy. can you search for american airlines flights? [system] i'll update my search details with american airlines and premium economy, okay? [user] yes, that sounds good. which airport will i fly to first, and when will the onward flight arrive? [system] sorry, but the selected flight was unavailable. do you want any further help? [user] no, thanks a lot.
State: [state] inbound_departure_time=none airlines=f outbound_departure_time=none passengers=d refundable=a return_date=none departure_date=friday next week seating_class=c destination_city=nyc origin_city=san fran