[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 origin_city=las vegas passengers=b of possible values a) 4 b) 1 c) 3 d) 2 airlines=a of possible values a) southwest airlines b) british airways c) united airlines d) air france e) american airlines f) delta airlines g) air canada h) alaska airlines inbound_departure_time=8:25 pm destination_city=sd refundable=a of possible values a) true b) false seating_class=dontcare of possible values a) first class b) economy c) premium economy d) business outbound_departure_time=3:10 pm return_date=9th of this month [context] [user] i plan to take a short flight, can you help me buy tickets?
State: [state] departure_date=none origin_city=none passengers=none airlines=none inbound_departure_time=none destination_city=none refundable=none seating_class=none outbound_departure_time=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 refundable=a of possible values a) true b) false passengers=c of possible values a) 3 b) 4 c) 1 d) 2 seating_class=dontcare of possible values a) business b) premium economy c) first class d) economy destination_city=sd departure_date=6th of this month airlines=d of possible values a) american airlines b) air france c) alaska airlines d) southwest airlines e) delta airlines f) british airways g) air canada h) united airlines return_date=9th of this month inbound_departure_time=8:25 pm [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight.
State: [state] origin_city=san fran outbound_departure_time=none refundable=none passengers=none seating_class=d destination_city=none departure_date=march 1st airlines=none return_date=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] seating_class=dontcare of possible values a) economy b) premium economy c) first class d) business origin_city=las vegas refundable=a of possible values a) true b) false destination_city=sd airlines=a of possible values a) southwest airlines b) united airlines c) british airways d) alaska airlines e) air france f) delta airlines g) american airlines h) air canada departure_date=6th of this month return_date=9th of this month passengers=c of possible values a) 4 b) 2 c) 1 d) 3 inbound_departure_time=8:25 pm outbound_departure_time=3:10 pm [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight. [system] are you travelling with a preferred airline such as air canada or air france? when do you plan to return? [user] i prefer to fly with united airlines and i plan to be back on the 4th of this month.
State: [state] seating_class=a origin_city=san fran refundable=none destination_city=none airlines=b departure_date=march 1st return_date=4th of this month passengers=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] airlines=d of possible values a) delta airlines b) american airlines c) united airlines d) southwest airlines e) air canada f) alaska airlines g) air france h) british airways refundable=a of possible values a) true b) false origin_city=las vegas inbound_departure_time=8:25 pm destination_city=sd return_date=9th of this month seating_class=dontcare of possible values a) premium economy b) economy c) first class d) business outbound_departure_time=3:10 pm departure_date=6th of this month passengers=c of possible values a) 4 b) 2 c) 1 d) 3 [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight. [system] are you travelling with a preferred airline such as air canada or air france? when do you plan to return? [user] i prefer to fly with united airlines and i plan to be back on the 4th of this month. [system] how early would you like to fly out? is there anywhere particular you are planning to visit? [user] i would like to leave early possibly around 08:00. i am traveling to ny so i would prefer to take delta airlines.
State: [state] airlines=a refundable=none origin_city=san fran inbound_departure_time=none destination_city=ny return_date=4th of this month seating_class=b outbound_departure_time=08:00 departure_date=march 1st passengers=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 departure_date=6th of this month passengers=a of possible values a) 1 b) 3 c) 4 d) 2 destination_city=sd airlines=d of possible values a) american airlines b) air canada c) alaska airlines d) southwest airlines e) delta airlines f) british airways g) air france h) united airlines outbound_departure_time=3:10 pm refundable=a of possible values a) true b) false 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 [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight. [system] are you travelling with a preferred airline such as air canada or air france? when do you plan to return? [user] i prefer to fly with united airlines and i plan to be back on the 4th of this month. [system] how early would you like to fly out? is there anywhere particular you are planning to visit? [user] i would like to leave early possibly around 08:00. i am traveling to ny so i would prefer to take delta airlines. [system] when would you like to return? [user] i would like to be on my next flight by half past 6 in the evening.
State: [state] return_date=4th of this month departure_date=march 1st passengers=none destination_city=ny airlines=e outbound_departure_time=08:00 refundable=none inbound_departure_time=half past 6 in the evening seating_class=b origin_city=san fran

[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 departure_date=6th of this month airlines=b of possible values a) air canada b) southwest airlines c) air france d) delta airlines e) alaska airlines f) united airlines g) american airlines h) british airways destination_city=sd passengers=d of possible values a) 2 b) 4 c) 3 d) 1 outbound_departure_time=3:10 pm inbound_departure_time=8:25 pm refundable=b of possible values a) false b) true origin_city=las vegas seating_class=dontcare of possible values a) premium economy b) business c) economy d) first class [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight. [system] are you travelling with a preferred airline such as air canada or air france? when do you plan to return? [user] i prefer to fly with united airlines and i plan to be back on the 4th of this month. [system] how early would you like to fly out? is there anywhere particular you are planning to visit? [user] i would like to leave early possibly around 08:00. i am traveling to ny so i would prefer to take delta airlines. [system] when would you like to return? [user] i would like to be on my next flight by half past 6 in the evening. [system] can you please confirm your flight itinerary? we have the following details: your first flight departs from san francisco at 8 am onward to new york. the flight departs today and you are flying with delta airlines. you will return next monday on an economy flight which departs at 6:30 pm and is booked for 1 passenger. [user] yes, those details are correct.
State: [state] return_date=4th of this month departure_date=march 1st airlines=d destination_city=ny passengers=d outbound_departure_time=08:00 inbound_departure_time=6:30 pm refundable=none origin_city=san fran seating_class=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] origin_city=las vegas return_date=9th of this month outbound_departure_time=3:10 pm departure_date=6th of this month seating_class=dontcare of possible values a) economy b) business c) premium economy d) first class destination_city=sd inbound_departure_time=8:25 pm refundable=b of possible values a) false b) true airlines=a of possible values a) southwest airlines b) american airlines c) delta airlines d) air canada e) air france f) alaska airlines g) united airlines h) british airways passengers=a of possible values a) 1 b) 3 c) 4 d) 2 [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight. [system] are you travelling with a preferred airline such as air canada or air france? when do you plan to return? [user] i prefer to fly with united airlines and i plan to be back on the 4th of this month. [system] how early would you like to fly out? is there anywhere particular you are planning to visit? [user] i would like to leave early possibly around 08:00. i am traveling to ny so i would prefer to take delta airlines. [system] when would you like to return? [user] i would like to be on my next flight by half past 6 in the evening. [system] can you please confirm your flight itinerary? we have the following details: your first flight departs from san francisco at 8 am onward to new york. the flight departs today and you are flying with delta airlines. you will return next monday on an economy flight which departs at 6:30 pm and is booked for 1 passenger. [user] yes, those details are correct. [system] i was unable to book your ticket at this time. is there anything else i can help you with? [user] i would like to continue making a reservation and change the return date to the 11th.
State: [state] origin_city=san fran return_date=the 11th outbound_departure_time=08:00 departure_date=march 1st seating_class=a destination_city=ny inbound_departure_time=6:30 pm refundable=none airlines=c 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] return_date=9th of this month airlines=g of possible values a) united airlines b) alaska airlines c) air canada d) british airways e) delta airlines f) air france g) southwest airlines h) american airlines inbound_departure_time=8:25 pm origin_city=las vegas destination_city=sd departure_date=6th of this month seating_class=dontcare of possible values a) first class b) premium economy c) business d) economy refundable=b of possible values a) false b) true passengers=a of possible values a) 1 b) 2 c) 4 d) 3 outbound_departure_time=3:10 pm [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight. [system] are you travelling with a preferred airline such as air canada or air france? when do you plan to return? [user] i prefer to fly with united airlines and i plan to be back on the 4th of this month. [system] how early would you like to fly out? is there anywhere particular you are planning to visit? [user] i would like to leave early possibly around 08:00. i am traveling to ny so i would prefer to take delta airlines. [system] when would you like to return? [user] i would like to be on my next flight by half past 6 in the evening. [system] can you please confirm your flight itinerary? we have the following details: your first flight departs from san francisco at 8 am onward to new york. the flight departs today and you are flying with delta airlines. you will return next monday on an economy flight which departs at 6:30 pm and is booked for 1 passenger. [user] yes, those details are correct. [system] i was unable to book your ticket at this time. is there anything else i can help you with? [user] i would like to continue making a reservation and change the return date to the 11th. [system] can you please confirm your flight itinerary? we have the following details: your first flight is with delta airlines and departs from san francisco at 8 am onward to new york. the flight departs today and you will return next march 11th on an economy flight which departs at 6:30 pm and is booked for 1 passenger. [user] yes, how much will it cost?
State: [state] return_date=march 11th airlines=e inbound_departure_time=6:30 pm origin_city=san fran destination_city=ny departure_date=march 1st seating_class=d refundable=none passengers=a outbound_departure_time=08:00

[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] departure_date=6th of this month seating_class=dontcare of possible values a) business b) premium economy c) first class d) economy airlines=b of possible values a) united airlines b) southwest airlines c) air canada d) alaska airlines e) american airlines f) air france g) delta airlines h) british airways origin_city=las vegas outbound_departure_time=3:10 pm destination_city=sd refundable=a of possible values a) true b) false inbound_departure_time=8:25 pm return_date=9th of this month passengers=a of possible values a) 1 b) 4 c) 2 d) 3 [context] [user] i plan to take a short flight, can you help me buy tickets? [system] where will you be leaving from? [user] i am leaving san fran on march 1st. i plan to travel on an economy flight. [system] are you travelling with a preferred airline such as air canada or air france? when do you plan to return? [user] i prefer to fly with united airlines and i plan to be back on the 4th of this month. [system] how early would you like to fly out? is there anywhere particular you are planning to visit? [user] i would like to leave early possibly around 08:00. i am traveling to ny so i would prefer to take delta airlines. [system] when would you like to return? [user] i would like to be on my next flight by half past 6 in the evening. [system] can you please confirm your flight itinerary? we have the following details: your first flight departs from san francisco at 8 am onward to new york. the flight departs today and you are flying with delta airlines. you will return next monday on an economy flight which departs at 6:30 pm and is booked for 1 passenger. [user] yes, those details are correct. [system] i was unable to book your ticket at this time. is there anything else i can help you with? [user] i would like to continue making a reservation and change the return date to the 11th. [system] can you please confirm your flight itinerary? we have the following details: your first flight is with delta airlines and departs from san francisco at 8 am onward to new york. the flight departs today and you will return next march 11th on an economy flight which departs at 6:30 pm and is booked for 1 passenger. [user] yes, how much will it cost? [system] i was unable to book your ticket at this time. is there anything else i can help you with? [user] no but, thank you for your help.
State: [state] departure_date=march 1st seating_class=d airlines=g origin_city=san fran outbound_departure_time=08:00 destination_city=ny refundable=none inbound_departure_time=6:30 pm return_date=march 11th passengers=a