[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=d of possible values a) 2 b) 3 c) 4 d) 1 departure_date=6th of this month seating_class=dontcare of possible values a) first class b) economy c) business d) premium economy origin_city=las vegas destination_city=sd refundable=b of possible values a) false b) true airlines=h of possible values a) air canada b) american airlines c) air france d) united airlines e) alaska airlines f) british airways g) delta airlines h) southwest airlines return_date=9th of this month inbound_departure_time=8:25 pm outbound_departure_time=3:10 pm [context] [user] i would like a flight ticket.
State: [state] passengers=none departure_date=none seating_class=none origin_city=none destination_city=none refundable=none airlines=none return_date=none inbound_departure_time=none outbound_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] departure_date=6th of this month outbound_departure_time=3:10 pm seating_class=dontcare of possible values a) premium economy b) business c) economy d) first class return_date=9th of this month airlines=g of possible values a) air france b) british airways c) delta airlines d) air canada e) united airlines f) american airlines g) southwest airlines h) alaska airlines passengers=c of possible values a) 3 b) 2 c) 1 d) 4 destination_city=sd inbound_departure_time=8:25 pm refundable=a of possible values a) true b) false origin_city=las vegas [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week.
State: [state] departure_date=none outbound_departure_time=none seating_class=none return_date=tuesday next week airlines=c passengers=none destination_city=none inbound_departure_time=none refundable=none origin_city=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] destination_city=sd passengers=b of possible values a) 2 b) 1 c) 3 d) 4 outbound_departure_time=3:10 pm departure_date=6th of this month airlines=a of possible values a) southwest airlines b) alaska airlines c) american airlines d) delta airlines e) air canada f) air france g) british airways h) united airlines origin_city=las vegas refundable=a of possible values a) true b) false inbound_departure_time=8:25 pm seating_class=dontcare of possible values a) economy b) premium economy c) first class d) business return_date=9th of this month [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week. [system] where are you leaving from? what time do you want the return flight? [user] there are 4 of us leaving from la. we want a return flight around 17:00.
State: [state] destination_city=none passengers=d outbound_departure_time=none departure_date=none airlines=d origin_city=la refundable=none inbound_departure_time=17:00 seating_class=none return_date=tuesday next week

[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] destination_city=sd airlines=a of possible values a) southwest airlines b) british airways c) united airlines d) air france e) alaska airlines f) delta airlines g) american airlines h) air canada inbound_departure_time=8:25 pm seating_class=dontcare of possible values a) premium economy b) economy c) first class d) business origin_city=las vegas return_date=9th of this month refundable=b of possible values a) false b) true passengers=d of possible values a) 3 b) 2 c) 4 d) 1 outbound_departure_time=3:10 pm departure_date=6th of this month [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week. [system] where are you leaving from? what time do you want the return flight? [user] there are 4 of us leaving from la. we want a return flight around 17:00. [system] when are you leaving? [user] i want to fly on american airlines on the 1st of this month.
State: [state] destination_city=none airlines=g inbound_departure_time=17:00 seating_class=none origin_city=la return_date=tuesday next week refundable=none passengers=c outbound_departure_time=none departure_date=1st of this month

[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 destination_city=sd seating_class=dontcare of possible values a) economy b) first class c) premium economy d) business inbound_departure_time=8:25 pm return_date=9th of this month departure_date=6th of this month refundable=b of possible values a) false b) true airlines=h of possible values a) air france b) alaska airlines c) delta airlines d) air canada e) british airways f) american airlines g) united airlines h) southwest airlines origin_city=las vegas passengers=c of possible values a) 3 b) 2 c) 1 d) 4 [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week. [system] where are you leaving from? what time do you want the return flight? [user] there are 4 of us leaving from la. we want a return flight around 17:00. [system] when are you leaving? [user] i want to fly on american airlines on the 1st of this month. [system] where are you flying to? [user] i want to leave for philadelphia around evening 6:30.
State: [state] outbound_departure_time=evening 6:30 destination_city=philadelphia seating_class=none inbound_departure_time=17:00 return_date=tuesday next week departure_date=1st of this month refundable=none airlines=f origin_city=la 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] airlines=b of possible values a) air canada b) southwest airlines c) british airways d) alaska airlines e) american airlines f) air france g) united airlines h) delta airlines departure_date=6th of this month outbound_departure_time=3:10 pm origin_city=las vegas passengers=d of possible values a) 3 b) 4 c) 2 d) 1 refundable=a of possible values a) true b) false return_date=9th of this month destination_city=sd seating_class=dontcare of possible values a) business b) economy c) premium economy d) first class inbound_departure_time=8:25 pm [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week. [system] where are you leaving from? what time do you want the return flight? [user] there are 4 of us leaving from la. we want a return flight around 17:00. [system] when are you leaving? [user] i want to fly on american airlines on the 1st of this month. [system] where are you flying to? [user] i want to leave for philadelphia around evening 6:30. [system] please confirm you want 4 tickets to fly from los angeles to philadelphia on american airlines in economy, departing today at 6:30 pm and returning next tuesday at 5 pm. [user] that is perfect.
State: [state] airlines=e departure_date=1st of this month outbound_departure_time=6:30 pm origin_city=la passengers=b refundable=none return_date=tuesday next week destination_city=philadelphia seating_class=b inbound_departure_time=17:00

[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) alaska airlines c) british airways d) air canada e) southwest airlines f) american airlines g) united airlines h) air france origin_city=las vegas destination_city=sd seating_class=dontcare of possible values a) economy b) business c) first class d) premium economy refundable=b of possible values a) false b) true departure_date=6th of this month outbound_departure_time=3:10 pm return_date=9th of this month passengers=b of possible values a) 4 b) 1 c) 3 d) 2 [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week. [system] where are you leaving from? what time do you want the return flight? [user] there are 4 of us leaving from la. we want a return flight around 17:00. [system] when are you leaving? [user] i want to fly on american airlines on the 1st of this month. [system] where are you flying to? [user] i want to leave for philadelphia around evening 6:30. [system] please confirm you want 4 tickets to fly from los angeles to philadelphia on american airlines in economy, departing today at 6:30 pm and returning next tuesday at 5 pm. [user] that is perfect. [system] the reservation was unsuccessful. do you need anything else? [user] please reserve me a plane ticket from portland.
State: [state] inbound_departure_time=17:00 airlines=f origin_city=portland destination_city=philadelphia seating_class=a refundable=none departure_date=1st of this month outbound_departure_time=6:30 pm return_date=tuesday next week passengers=a

[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=b of possible values a) 2 b) 1 c) 3 d) 4 inbound_departure_time=8:25 pm return_date=9th of this month airlines=e of possible values a) united airlines b) air france c) american airlines d) air canada e) southwest airlines f) british airways g) delta airlines h) alaska airlines destination_city=sd outbound_departure_time=3:10 pm origin_city=las vegas departure_date=6th of this month seating_class=dontcare of possible values a) business b) first class c) economy d) premium economy refundable=a of possible values a) true b) false [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week. [system] where are you leaving from? what time do you want the return flight? [user] there are 4 of us leaving from la. we want a return flight around 17:00. [system] when are you leaving? [user] i want to fly on american airlines on the 1st of this month. [system] where are you flying to? [user] i want to leave for philadelphia around evening 6:30. [system] please confirm you want 4 tickets to fly from los angeles to philadelphia on american airlines in economy, departing today at 6:30 pm and returning next tuesday at 5 pm. [user] that is perfect. [system] the reservation was unsuccessful. do you need anything else? [user] please reserve me a plane ticket from portland. [system] please confirm you want 4 tickets to fly from portland to philadelphia on american airlines in economy, departing today at 6:30 pm and returning next tuesday at 5 pm. [user] that is perfect.
State: [state] passengers=d inbound_departure_time=17:00 return_date=tuesday next week airlines=c destination_city=philadelphia outbound_departure_time=6:30 pm origin_city=portland departure_date=1st of this month seating_class=c refundable=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] passengers=d of possible values a) 3 b) 4 c) 2 d) 1 origin_city=las vegas outbound_departure_time=3:10 pm return_date=9th of this month destination_city=sd airlines=b of possible values a) air canada b) southwest airlines c) delta airlines d) british airways e) american airlines f) united airlines g) alaska airlines h) air france seating_class=dontcare of possible values a) first class b) economy c) business d) premium economy departure_date=6th of this month inbound_departure_time=8:25 pm refundable=a of possible values a) true b) false [context] [user] i would like a flight ticket. [system] do you have a preferred airline such as air canada, air france, or other airline? when are you returning? [user] i want to fly on delta airlines and return on tuesday next week. [system] where are you leaving from? what time do you want the return flight? [user] there are 4 of us leaving from la. we want a return flight around 17:00. [system] when are you leaving? [user] i want to fly on american airlines on the 1st of this month. [system] where are you flying to? [user] i want to leave for philadelphia around evening 6:30. [system] please confirm you want 4 tickets to fly from los angeles to philadelphia on american airlines in economy, departing today at 6:30 pm and returning next tuesday at 5 pm. [user] that is perfect. [system] the reservation was unsuccessful. do you need anything else? [user] please reserve me a plane ticket from portland. [system] please confirm you want 4 tickets to fly from portland to philadelphia on american airlines in economy, departing today at 6:30 pm and returning next tuesday at 5 pm. [user] that is perfect. [system] i could not buy the ticket. do you need anything else? [user] no, that will be all.
State: [state] passengers=b origin_city=portland outbound_departure_time=6:30 pm return_date=tuesday next week destination_city=philadelphia airlines=e seating_class=b departure_date=1st of this month inbound_departure_time=17:00 refundable=none