In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: 'book': Make a new reservation, 'cancel': Cancel an existing reservation, 'no_flight': No flight found for the customer's preference, 'no_reservation': No reservation / No change / No cancellation was made in the conversation, mostly enquiring details

Q: customer: Hello.
agent: Hello, how best I can aid you at this moment?
customer: We are going to Washington, but first we should make a plane reservation. Can you please help me with this?
agent: Sure, I would like to make a reservation to Washington.
customer: Thank you for accepting my request.
agent: Could you please help me with your travelling airport codes?
customer: Sure, my airport codes are IAD - DCA.
agent: At what class, would you like to prefer to travel?
customer: I am fine with any class.
agent: Do you have any specific time for your journey?
customer: Yes, I would like to depart in afternoon time.
agent: When you are willing to travel to reach your destination?
customer: I have scheduled my trip dates on Nov 9th to 11th.
agent: Ok, Do you prefer to travel in a major airlines?
customer: I am comfortable with any airline.
agent: Thank you for sharing all the required details, please help me with your name. So, I can check the availability of flights.
customer: Jack Perez is my name.
agent: Please wait for a moment, I will inform you about the flight details as soon as possible.
customer: Ok, sure.
agent: Thanks for waiting, Jack Perez.
customer: Ok.
agent: Sorry for the inconvenience, there were no flights moving to your location due to sold out of tickets.
customer: It's sad to hear, but no issues at all. Thank you for the best service.
agent: Thank you for consulting our chat service. Hope we serve you again.

A: no_flight
****
Q: customer: Hello. I am William Carter.
agent: Hello, how may I aid you today?
customer: I want to book a ticket from Dallas & Fort Worth, TX - DFW. Can you please help me with book a connection of flight?
agent: Sure, let me know your destination airport code?
customer: My destination airport code is Atlanta, GA - ATL.
agent: When are you planning to travel?
customer: I want to fly on 08/17. Return date is 08/19.
agent: Thank you for providing your name, there are no flights found with your specifications.
customer: Not an issue.
agent: Thank you for opting our agency.
customer: Thanks for the information.

A: no_flight
****
Q: customer: Hi.
agent: Hello, how may I render you at this moment?
customer: I am Jennifer Wright planning to have a round trip from AUS, can you help me in booking my flight ticket?
agent: Sure, I will help you. Can I have your travelling dates please?
customer: Sure, my travelling dates will be 04/10 and 04/12.
agent: May I have your source and destination airport codes respectively?
customer: Sure, as it is a round trip I would like to choose my source and destination as AUS.
agent: May I have a moment please? I will check for the flights scheduled towards your destination.
customer: Sure.
agent: Thank you for waiting Wright. There is a flight available with 1 connection and airline is Southwest, shall I book it?
customer: Yes, you can proceed with this airline.
agent: Your booking is done with flight number 1011. Happy journey.
customer: Thank you for your service.
agent: You are welcome. Thank you for reaching us, have a nice day.

A:
book
****