[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=h of possible values a) united airlines b) delta airlines c) air canada d) american airlines e) air france f) british airways g) alaska airlines h) southwest airlines passengers=b of possible values a) 4 b) 1 c) 2 d) 3 inbound_departure_time=8:25 pm refundable=b of possible values a) false b) true origin_city=las vegas return_date=9th of this month departure_date=6th of this month seating_class=dontcare of possible values a) first class b) premium economy c) economy d) business destination_city=sd outbound_departure_time=3:10 pm [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket.
State: [state] airlines=none passengers=none inbound_departure_time=none refundable=none origin_city=none return_date=none departure_date=none seating_class=none destination_city=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] return_date=9th of this month origin_city=las vegas outbound_departure_time=3:10 pm refundable=a of possible values a) true b) false departure_date=6th of this month inbound_departure_time=8:25 pm passengers=d of possible values a) 3 b) 2 c) 4 d) 1 destination_city=sd airlines=b of possible values a) united airlines b) southwest airlines c) air france d) delta airlines e) british airways f) american airlines g) air canada h) alaska airlines seating_class=dontcare of possible values a) first class b) economy c) business d) premium economy [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th.
State: [state] return_date=none origin_city=none outbound_departure_time=none refundable=none departure_date=march 12th inbound_departure_time=none passengers=none destination_city=none airlines=d 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] destination_city=sd refundable=a of possible values a) true b) false outbound_departure_time=3:10 pm return_date=9th of this month airlines=a of possible values a) southwest airlines b) united airlines c) delta airlines d) american airlines e) air canada f) british airways g) air france h) alaska airlines passengers=d of possible values a) 2 b) 3 c) 4 d) 1 inbound_departure_time=8:25 pm origin_city=las vegas departure_date=6th of this month seating_class=dontcare of possible values a) first class b) economy c) business d) premium economy [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk.
State: [state] destination_city=london, uk refundable=none outbound_departure_time=none return_date=none airlines=c passengers=none inbound_departure_time=none origin_city=sd departure_date=march 12th 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] inbound_departure_time=8:25 pm return_date=9th of this month outbound_departure_time=3:10 pm destination_city=sd departure_date=6th of this month seating_class=dontcare of possible values a) premium economy b) economy c) business d) first class passengers=a of possible values a) 1 b) 4 c) 3 d) 2 origin_city=las vegas airlines=b of possible values a) air france b) southwest airlines c) air canada d) delta airlines e) american airlines f) british airways g) united airlines h) alaska airlines refundable=a of possible values a) true b) false [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk. [system] you would like to book 1 economy class seat on delta airlines from san diego to london on march 12th, is this correct? [user] yes, that sounds good.
State: [state] inbound_departure_time=none return_date=none outbound_departure_time=none destination_city=london departure_date=march 12th seating_class=b passengers=a origin_city=sd airlines=d 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] seating_class=dontcare of possible values a) premium economy b) first class c) economy d) business airlines=c of possible values a) american airlines b) air france c) southwest airlines d) alaska airlines e) united airlines f) air canada g) british airways h) delta airlines outbound_departure_time=3:10 pm inbound_departure_time=8:25 pm destination_city=sd passengers=a of possible values a) 1 b) 4 c) 3 d) 2 departure_date=6th of this month origin_city=las vegas refundable=a of possible values a) true b) false return_date=9th of this month [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk. [system] you would like to book 1 economy class seat on delta airlines from san diego to london on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i was not able to book the ticket. is there anything else i can help you with? [user] i would like to continue trying to make the reservation, let's try a flight to sf. my plans may change, so i only want to find refundable tickets.
State: [state] seating_class=c airlines=h outbound_departure_time=none inbound_departure_time=none destination_city=sf passengers=a departure_date=march 12th origin_city=sd refundable=a 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] outbound_departure_time=3:10 pm inbound_departure_time=8:25 pm departure_date=6th of this month passengers=c of possible values a) 3 b) 2 c) 1 d) 4 refundable=a of possible values a) true b) false origin_city=las vegas return_date=9th of this month airlines=a of possible values a) southwest airlines b) american airlines c) united airlines d) air france e) delta airlines f) british airways g) air canada h) alaska airlines destination_city=sd seating_class=dontcare of possible values a) premium economy b) first class c) business d) economy [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk. [system] you would like to book 1 economy class seat on delta airlines from san diego to london on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i was not able to book the ticket. is there anything else i can help you with? [user] i would like to continue trying to make the reservation, let's try a flight to sf. my plans may change, so i only want to find refundable tickets. [system] you would like to book 1 economy seat on delta airlines from san diego to san francisco on march 12th, is this correct? [user] yes, that sounds good.
State: [state] outbound_departure_time=none inbound_departure_time=none departure_date=march 12th passengers=c refundable=a origin_city=sd return_date=none airlines=e destination_city=sf 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] outbound_departure_time=3:10 pm seating_class=dontcare of possible values a) economy b) business c) first class d) premium economy passengers=a of possible values a) 1 b) 2 c) 4 d) 3 origin_city=las vegas inbound_departure_time=8:25 pm airlines=g of possible values a) american airlines b) british airways c) delta airlines d) alaska airlines e) air canada f) united airlines g) southwest airlines h) air france return_date=9th of this month refundable=a of possible values a) true b) false departure_date=6th of this month destination_city=sd [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk. [system] you would like to book 1 economy class seat on delta airlines from san diego to london on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i was not able to book the ticket. is there anything else i can help you with? [user] i would like to continue trying to make the reservation, let's try a flight to sf. my plans may change, so i only want to find refundable tickets. [system] you would like to book 1 economy seat on delta airlines from san diego to san francisco on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i could not get you a ticket. is there anything else i can help you with? [user] let's keep trying. try american airlines, i also like that one.
State: [state] outbound_departure_time=none seating_class=a passengers=a origin_city=sd inbound_departure_time=none airlines=a return_date=none refundable=a departure_date=march 12th destination_city=sf

[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) 3 b) 1 c) 4 d) 2 inbound_departure_time=8:25 pm destination_city=sd refundable=b of possible values a) false b) true seating_class=dontcare of possible values a) premium economy b) business c) economy d) first class departure_date=6th of this month return_date=9th of this month airlines=c of possible values a) united airlines b) air canada c) southwest airlines d) british airways e) alaska airlines f) american airlines g) delta airlines h) air france origin_city=las vegas outbound_departure_time=3:10 pm [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk. [system] you would like to book 1 economy class seat on delta airlines from san diego to london on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i was not able to book the ticket. is there anything else i can help you with? [user] i would like to continue trying to make the reservation, let's try a flight to sf. my plans may change, so i only want to find refundable tickets. [system] you would like to book 1 economy seat on delta airlines from san diego to san francisco on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i could not get you a ticket. is there anything else i can help you with? [user] let's keep trying. try american airlines, i also like that one. [system] you would like 1 economy ticket on american airlines from san diego to san francisco on march 12th, is that correct? [user] yes, that sounds good.
State: [state] passengers=b inbound_departure_time=none destination_city=sf refundable=b seating_class=c departure_date=march 12th return_date=none airlines=f origin_city=sd 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] seating_class=dontcare of possible values a) first class b) economy c) business d) premium economy passengers=a of possible values a) 1 b) 4 c) 3 d) 2 inbound_departure_time=8:25 pm outbound_departure_time=3:10 pm refundable=b of possible values a) false b) true destination_city=sd origin_city=las vegas return_date=9th of this month airlines=d of possible values a) air canada b) united airlines c) british airways d) southwest airlines e) delta airlines f) alaska airlines g) american airlines h) air france departure_date=6th of this month [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk. [system] you would like to book 1 economy class seat on delta airlines from san diego to london on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i was not able to book the ticket. is there anything else i can help you with? [user] i would like to continue trying to make the reservation, let's try a flight to sf. my plans may change, so i only want to find refundable tickets. [system] you would like to book 1 economy seat on delta airlines from san diego to san francisco on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i could not get you a ticket. is there anything else i can help you with? [user] let's keep trying. try american airlines, i also like that one. [system] you would like 1 economy ticket on american airlines from san diego to san francisco on march 12th, is that correct? [user] yes, that sounds good. [system] your one way ticket is confirmed. [user] thanks for your help.
State: [state] seating_class=b passengers=a inbound_departure_time=none outbound_departure_time=none refundable=b destination_city=sf origin_city=sd return_date=none airlines=g departure_date=march 12th

[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] return_date=9th of this month airlines=f of possible values a) american airlines b) air france c) alaska airlines d) delta airlines e) air canada f) southwest airlines g) united airlines h) british airways origin_city=las vegas seating_class=dontcare of possible values a) economy b) business c) premium economy d) first class passengers=d of possible values a) 2 b) 4 c) 3 d) 1 refundable=a of possible values a) true b) false inbound_departure_time=8:25 pm outbound_departure_time=3:10 pm departure_date=6th of this month destination_city=sd [context] [user] i am planning to travel soon. i would like some help buying a one way flight ticket. [system] when would you like to leave? is there a particular airline you prefer, for example air canada, british airways, and so on? [user] yes, i prefer delta airlines. i am leaving on march 12th. [system] where will you be departing from, and where would you like to travel? [user] i am leaving from sd and traveling to london, uk. [system] you would like to book 1 economy class seat on delta airlines from san diego to london on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i was not able to book the ticket. is there anything else i can help you with? [user] i would like to continue trying to make the reservation, let's try a flight to sf. my plans may change, so i only want to find refundable tickets. [system] you would like to book 1 economy seat on delta airlines from san diego to san francisco on march 12th, is this correct? [user] yes, that sounds good. [system] sorry, i could not get you a ticket. is there anything else i can help you with? [user] let's keep trying. try american airlines, i also like that one. [system] you would like 1 economy ticket on american airlines from san diego to san francisco on march 12th, is that correct? [user] yes, that sounds good. [system] your one way ticket is confirmed. [user] thanks for your help. [system] is there anything else i can help you with? [user] no, i'm all set for now, thanks.
State: [state] return_date=none airlines=a origin_city=sd seating_class=a passengers=d refundable=a inbound_departure_time=none outbound_departure_time=none departure_date=march 12th destination_city=sf