[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 airlines=f of possible values a) alaska airlines b) delta airlines c) air france d) british airways e) american airlines f) southwest airlines g) air canada h) united airlines origin_city=las vegas refundable=a of possible values a) true b) false inbound_departure_time=8:25 pm destination_city=sd seating_class=dontcare of possible values a) business b) first class c) economy d) premium economy passengers=b of possible values a) 4 b) 1 c) 2 d) 3 return_date=9th of this month outbound_departure_time=3:10 pm [context] [user] i will be leaving for a brief trip. help me purchase flight tickets?
State: [state] departure_date=none airlines=none origin_city=none refundable=none inbound_departure_time=none destination_city=none seating_class=none passengers=none return_date=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 passengers=c of possible values a) 2 b) 4 c) 1 d) 3 departure_date=6th of this month inbound_departure_time=8:25 pm destination_city=sd seating_class=dontcare of possible values a) first class b) economy c) premium economy d) business airlines=a of possible values a) southwest airlines b) american airlines c) air canada d) air france e) alaska airlines f) delta airlines g) united airlines h) british airways origin_city=las vegas refundable=b of possible values a) false b) true outbound_departure_time=3:10 pm [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight.
State: [state] return_date=none passengers=none departure_date=none inbound_departure_time=half past 8 in the night destination_city=none seating_class=none airlines=g origin_city=none refundable=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 return_date=9th of this month inbound_departure_time=8:25 pm airlines=c of possible values a) air france b) american airlines c) southwest airlines d) united airlines e) alaska airlines f) air canada g) delta airlines h) british airways destination_city=sd refundable=b of possible values a) false b) true passengers=a of possible values a) 1 b) 3 c) 2 d) 4 outbound_departure_time=3:10 pm origin_city=las vegas seating_class=dontcare of possible values a) first class b) economy c) premium economy d) business [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight. [system] what place are you leaving from and when do you plan to come back? [user] i am going from sf and coming back on the 7th.
State: [state] departure_date=none return_date=the 7th inbound_departure_time=half past 8 in the night airlines=d destination_city=none refundable=none passengers=none outbound_departure_time=none origin_city=sf 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] origin_city=las vegas destination_city=sd outbound_departure_time=3:10 pm return_date=9th of this month departure_date=6th of this month inbound_departure_time=8:25 pm airlines=a of possible values a) southwest airlines b) alaska airlines c) united airlines d) american airlines e) air france f) air canada g) british airways h) delta airlines passengers=b of possible values a) 3 b) 1 c) 2 d) 4 refundable=b of possible values a) false b) true seating_class=dontcare of possible values a) first class b) premium economy c) business d) economy [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight. [system] what place are you leaving from and when do you plan to come back? [user] i am going from sf and coming back on the 7th. [system] what time are you leaving? [user] my onward flight can leave at 2:45 in the afternoon.
State: [state] origin_city=sf destination_city=none outbound_departure_time=2:45 in the afternoon return_date=the 7th departure_date=none inbound_departure_time=half past 8 in the night airlines=c passengers=none refundable=none 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] origin_city=las vegas passengers=b of possible values a) 4 b) 1 c) 3 d) 2 refundable=a of possible values a) true b) false airlines=e of possible values a) delta airlines b) american airlines c) air france d) air canada e) southwest airlines f) alaska airlines g) united airlines h) british airways outbound_departure_time=3:10 pm return_date=9th of this month seating_class=dontcare of possible values a) premium economy b) business c) economy d) first class departure_date=6th of this month inbound_departure_time=8:25 pm destination_city=sd [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight. [system] what place are you leaving from and when do you plan to come back? [user] i am going from sf and coming back on the 7th. [system] what time are you leaving? [user] my onward flight can leave at 2:45 in the afternoon. [system] what is your destination? [user] i am going to seattle.
State: [state] origin_city=sf passengers=none refundable=none airlines=g outbound_departure_time=2:45 in the afternoon return_date=the 7th seating_class=none departure_date=none inbound_departure_time=half past 8 in the night destination_city=seattle

[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 passengers=a of possible values a) 1 b) 2 c) 4 d) 3 inbound_departure_time=8:25 pm airlines=g of possible values a) united airlines b) british airways c) delta airlines d) air france e) air canada f) american airlines g) southwest airlines h) alaska airlines origin_city=las vegas departure_date=6th of this month return_date=9th of this month seating_class=dontcare of possible values a) business b) first class c) premium economy d) economy destination_city=sd refundable=b of possible values a) false b) true [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight. [system] what place are you leaving from and when do you plan to come back? [user] i am going from sf and coming back on the 7th. [system] what time are you leaving? [user] my onward flight can leave at 2:45 in the afternoon. [system] what is your destination? [user] i am going to seattle. [system] what date are you leaving? [user] i am going on the 1st of this month.
State: [state] outbound_departure_time=2:45 in the afternoon passengers=none inbound_departure_time=half past 8 in the night airlines=a origin_city=sf departure_date=1st of this month return_date=the 7th seating_class=none destination_city=seattle 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] origin_city=las vegas departure_date=6th of this month return_date=9th 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 refundable=a of possible values a) true b) false passengers=b of possible values a) 3 b) 1 c) 2 d) 4 destination_city=sd inbound_departure_time=8:25 pm airlines=h of possible values a) british airways b) air france c) delta airlines d) united airlines e) air canada f) alaska airlines g) american airlines h) southwest airlines [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight. [system] what place are you leaving from and when do you plan to come back? [user] i am going from sf and coming back on the 7th. [system] what time are you leaving? [user] my onward flight can leave at 2:45 in the afternoon. [system] what is your destination? [user] i am going to seattle. [system] what date are you leaving? [user] i am going on the 1st of this month. [system] let me confirm: your flight is from san francisco going to seattle. it is a united airlines flight and is departing today. the return date will be next thursday and the flight onward leaves at 2:45 pm and return flight leaves at 8:30 pm. the seating class for the flight will be economy and the number of passengers is 1. [user] not at all. i am coming back on 6th of march.
State: [state] origin_city=sf departure_date=1st of this month return_date=6th of march outbound_departure_time=2:45 in the afternoon seating_class=none refundable=none passengers=none destination_city=seattle inbound_departure_time=8:30 pm airlines=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] refundable=b of possible values a) false b) true seating_class=dontcare of possible values a) premium economy b) economy c) business d) first class inbound_departure_time=8:25 pm airlines=h of possible values a) air canada b) british airways c) united airlines d) air france e) american airlines f) alaska airlines g) delta airlines h) southwest airlines departure_date=6th of this month passengers=b of possible values a) 2 b) 1 c) 3 d) 4 origin_city=las vegas destination_city=sd return_date=9th of this month outbound_departure_time=3:10 pm [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight. [system] what place are you leaving from and when do you plan to come back? [user] i am going from sf and coming back on the 7th. [system] what time are you leaving? [user] my onward flight can leave at 2:45 in the afternoon. [system] what is your destination? [user] i am going to seattle. [system] what date are you leaving? [user] i am going on the 1st of this month. [system] let me confirm: your flight is from san francisco going to seattle. it is a united airlines flight and is departing today. the return date will be next thursday and the flight onward leaves at 2:45 pm and return flight leaves at 8:30 pm. the seating class for the flight will be economy and the number of passengers is 1. [user] not at all. i am coming back on 6th of march. [system] can you confirm the following: the plane is from san francisco and it will be returning on next wednesday. [user] sounds fine. what is the cost?
State: [state] refundable=none seating_class=b inbound_departure_time=8:30 pm airlines=c departure_date=1st of this month passengers=b origin_city=sf destination_city=seattle return_date=6th of march outbound_departure_time=2:45 in the afternoon

[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) 2 c) 4 d) 1 destination_city=sd refundable=b of possible values a) false b) true airlines=d of possible values a) delta airlines b) alaska airlines c) american airlines d) southwest airlines e) united airlines f) british airways g) air france h) air canada departure_date=6th of this month outbound_departure_time=3:10 pm seating_class=dontcare of possible values a) economy b) business c) first class d) premium economy inbound_departure_time=8:25 pm origin_city=las vegas return_date=9th of this month [context] [user] i will be leaving for a brief trip. help me purchase flight tickets? [system] is there any airlines you particularly prefer? how about alaska airlines, united airlines or any other? also, when would you like to board the return flight? [user] i am looking for united airlines. i am planning to leave at half past 8 in the night on the returning flight. [system] what place are you leaving from and when do you plan to come back? [user] i am going from sf and coming back on the 7th. [system] what time are you leaving? [user] my onward flight can leave at 2:45 in the afternoon. [system] what is your destination? [user] i am going to seattle. [system] what date are you leaving? [user] i am going on the 1st of this month. [system] let me confirm: your flight is from san francisco going to seattle. it is a united airlines flight and is departing today. the return date will be next thursday and the flight onward leaves at 2:45 pm and return flight leaves at 8:30 pm. the seating class for the flight will be economy and the number of passengers is 1. [user] not at all. i am coming back on 6th of march. [system] can you confirm the following: the plane is from san francisco and it will be returning on next wednesday. [user] sounds fine. what is the cost? [system] your ticket is booked. the cost would be $132. [user] thank you. that will be all.
State: [state] passengers=d destination_city=seattle refundable=none airlines=e departure_date=1st of this month outbound_departure_time=2:45 in the afternoon seating_class=a inbound_departure_time=8:30 pm origin_city=sf return_date=6th of march