[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) air canada b) united airlines c) delta airlines d) british airways e) air france f) alaska airlines g) american airlines h) southwest airlines refundable=b of possible values a) false b) true origin_city=las vegas passengers=b of possible values a) 3 b) 1 c) 2 d) 4 inbound_departure_time=8:25 pm departure_date=6th of this month seating_class=dontcare of possible values a) economy b) first class c) premium economy d) business outbound_departure_time=3:10 pm destination_city=sd return_date=9th of this month [context] [user] i'd like to get some plane tickets - can you give me a hand?
State: [state] airlines=none refundable=none origin_city=none passengers=none inbound_departure_time=none departure_date=none seating_class=none outbound_departure_time=none destination_city=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] inbound_departure_time=8:25 pm refundable=a of possible values a) true b) false outbound_departure_time=3:10 pm passengers=c of possible values a) 4 b) 3 c) 1 d) 2 origin_city=las vegas return_date=9th of this month seating_class=dontcare of possible values a) premium economy b) business c) first class d) economy airlines=g of possible values a) air france b) alaska airlines c) british airways d) air canada e) united airlines f) american airlines g) southwest airlines h) delta airlines destination_city=sd departure_date=6th of this month [context] [user] i'd like to get some plane tickets - can you give me a hand? [system] what are the details of your travel? [user] i'd like to fly through united airlines, traveling to chi-town - i'd prefer it if the return flight left around the afternoon 3:30.
State: [state] inbound_departure_time=afternoon 3:30 refundable=none outbound_departure_time=none passengers=none origin_city=none return_date=none seating_class=none airlines=e destination_city=chi-town departure_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] departure_date=6th of this month refundable=a of possible values a) true b) false airlines=h of possible values a) delta airlines b) american airlines c) british airways d) air france e) united airlines f) air canada g) alaska airlines h) southwest airlines inbound_departure_time=8:25 pm passengers=d of possible values a) 4 b) 3 c) 2 d) 1 outbound_departure_time=3:10 pm seating_class=dontcare of possible values a) premium economy b) economy c) first class d) business destination_city=sd origin_city=las vegas return_date=9th of this month [context] [user] i'd like to get some plane tickets - can you give me a hand? [system] what are the details of your travel? [user] i'd like to fly through united airlines, traveling to chi-town - i'd prefer it if the return flight left around the afternoon 3:30. [system] i'd like to get some more information from you: how many tickets would you like, what city are you leaving from, what time would you like to leave, and what date are you returning? [user] i'd like to get 3 tickets - i'd be departing at 1 in the afternoon from san fran, and the return date would be march 12th.
State: [state] departure_date=none refundable=none airlines=e inbound_departure_time=afternoon 3:30 passengers=b outbound_departure_time=1 in the afternoon seating_class=none destination_city=chi-town origin_city=san fran return_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] destination_city=sd departure_date=6th of this month inbound_departure_time=8:25 pm outbound_departure_time=3:10 pm seating_class=dontcare of possible values a) premium economy b) economy c) business d) first class airlines=b of possible values a) air canada b) southwest airlines c) american airlines d) alaska airlines e) air france f) british airways g) delta airlines h) united airlines return_date=9th of this month origin_city=las vegas passengers=c of possible values a) 2 b) 3 c) 1 d) 4 refundable=b of possible values a) false b) true [context] [user] i'd like to get some plane tickets - can you give me a hand? [system] what are the details of your travel? [user] i'd like to fly through united airlines, traveling to chi-town - i'd prefer it if the return flight left around the afternoon 3:30. [system] i'd like to get some more information from you: how many tickets would you like, what city are you leaving from, what time would you like to leave, and what date are you returning? [user] i'd like to get 3 tickets - i'd be departing at 1 in the afternoon from san fran, and the return date would be march 12th. [system] what date would you like to catch your departing flight? [user] i'd like to depart on the 10th.
State: [state] destination_city=chi-town departure_date=the 10th inbound_departure_time=afternoon 3:30 outbound_departure_time=1 in the afternoon seating_class=none airlines=h return_date=march 12th origin_city=san fran passengers=b 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) business b) first class c) premium economy d) economy inbound_departure_time=8:25 pm outbound_departure_time=3:10 pm passengers=a of possible values a) 1 b) 4 c) 3 d) 2 departure_date=6th of this month origin_city=las vegas destination_city=sd return_date=9th of this month refundable=a of possible values a) true b) false airlines=f of possible values a) alaska airlines b) air france c) delta airlines d) united airlines e) air canada f) southwest airlines g) american airlines h) british airways [context] [user] i'd like to get some plane tickets - can you give me a hand? [system] what are the details of your travel? [user] i'd like to fly through united airlines, traveling to chi-town - i'd prefer it if the return flight left around the afternoon 3:30. [system] i'd like to get some more information from you: how many tickets would you like, what city are you leaving from, what time would you like to leave, and what date are you returning? [user] i'd like to get 3 tickets - i'd be departing at 1 in the afternoon from san fran, and the return date would be march 12th. [system] what date would you like to catch your departing flight? [user] i'd like to depart on the 10th. [system] to review: you would like to buy 3 tickets through united airlines, leaving from san francisco to chicago at 1 pm on march 10th, returning march 12th at 3:30 pm. the tickets are economy class - does that sound right? [user] can you check for tickets through delta airlines?
State: [state] seating_class=none inbound_departure_time=3:30 pm outbound_departure_time=1 in the afternoon passengers=c departure_date=march 10th origin_city=san fran destination_city=chi-town return_date=march 12th refundable=none airlines=c

[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 outbound_departure_time=3:10 pm departure_date=6th of this month return_date=9th of this month seating_class=dontcare of possible values a) first class b) economy c) premium economy d) business origin_city=las vegas passengers=d of possible values a) 3 b) 2 c) 4 d) 1 airlines=b of possible values a) american airlines b) southwest airlines c) delta airlines d) united airlines e) british airways f) air france g) alaska airlines h) air canada refundable=b of possible values a) false b) true destination_city=sd [context] [user] i'd like to get some plane tickets - can you give me a hand? [system] what are the details of your travel? [user] i'd like to fly through united airlines, traveling to chi-town - i'd prefer it if the return flight left around the afternoon 3:30. [system] i'd like to get some more information from you: how many tickets would you like, what city are you leaving from, what time would you like to leave, and what date are you returning? [user] i'd like to get 3 tickets - i'd be departing at 1 in the afternoon from san fran, and the return date would be march 12th. [system] what date would you like to catch your departing flight? [user] i'd like to depart on the 10th. [system] to review: you would like to buy 3 tickets through united airlines, leaving from san francisco to chicago at 1 pm on march 10th, returning march 12th at 3:30 pm. the tickets are economy class - does that sound right? [user] can you check for tickets through delta airlines? [system] to review: you would like to buy 3 tickets through delta airlines, leaving from san francisco to chicago at 1 pm on march 10th, returning march 12th at 3:30 pm. is that what you're looking for? [user] that sounds great, yeah.
State: [state] inbound_departure_time=3:30 pm outbound_departure_time=1 in the afternoon departure_date=march 10th return_date=march 12th seating_class=b origin_city=san fran passengers=a airlines=c refundable=none destination_city=chi-town

[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 inbound_departure_time=8:25 pm seating_class=dontcare of possible values a) business b) first class c) premium economy d) economy passengers=b of possible values a) 4 b) 1 c) 2 d) 3 airlines=g of possible values a) british airways b) delta airlines c) air canada d) united airlines e) american airlines f) alaska airlines g) southwest airlines h) air france outbound_departure_time=3:10 pm return_date=9th of this month destination_city=sd origin_city=las vegas [context] [user] i'd like to get some plane tickets - can you give me a hand? [system] what are the details of your travel? [user] i'd like to fly through united airlines, traveling to chi-town - i'd prefer it if the return flight left around the afternoon 3:30. [system] i'd like to get some more information from you: how many tickets would you like, what city are you leaving from, what time would you like to leave, and what date are you returning? [user] i'd like to get 3 tickets - i'd be departing at 1 in the afternoon from san fran, and the return date would be march 12th. [system] what date would you like to catch your departing flight? [user] i'd like to depart on the 10th. [system] to review: you would like to buy 3 tickets through united airlines, leaving from san francisco to chicago at 1 pm on march 10th, returning march 12th at 3:30 pm. the tickets are economy class - does that sound right? [user] can you check for tickets through delta airlines? [system] to review: you would like to buy 3 tickets through delta airlines, leaving from san francisco to chicago at 1 pm on march 10th, returning march 12th at 3:30 pm. is that what you're looking for? [user] that sounds great, yeah. [system] i wasn't able to get tickets that match your search - is there anything else i can help you with? [user] no, that's all for now.
State: [state] departure_date=march 10th refundable=none inbound_departure_time=3:30 pm seating_class=d passengers=d airlines=b outbound_departure_time=1 in the afternoon return_date=march 12th destination_city=chi-town origin_city=san fran