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

[EX Q]: customer: Hi.
agent: Hello, how can I help you?
customer: Owing to an emergency, I want to cancel my reservation. Can you check whether there is any refund policy on my reserved ticket?
agent: Please wait a while, may I know your name please?
customer: Sure, my name is Charles Johnson.
agent: Sorry to say, there is no reservation on your name in our database.
customer: That's ok, thank you for checking.
agent: Thank you for opting us.
[EX A]: no_reservation

[EX Q]: customer: Hello.
agent: Hello, how may I support you?
customer: Assist me in booking a flight ticket from SFO to DEN.
agent: I can definitely do that for you. Will you please let me know your maximum connection limit?
customer: Single connection flight is required.
agent: On what dates are you planning to make your trip?
customer: I preferred to travel in June 23 and June 25.
agent: Which airline will you prefer to travel in?
customer: I prefer to travel in normal cost airline.
agent: Do you need an economy class or business class?
customer: Economy class suits best to me.
agent: Please forward your name.
customer: This is Samantha Lewis.
agent: We found a direct flight on your way. Is that fine?
customer: Sure, proceed to book it.
agent: Your booking has been done in flight 1012 of United airlines with an estimate of 200.
customer: Thanks for your booking.
agent: Thank you for reaching us.
[EX A]: book

[EX Q]: customer: Hello.
agent: Hello, how may I help you?
customer: My name is Robert Lopez. Can you please help me in cancel my reservation.
agent: Sure, wait a minute.
customer: Ok.
agent: We found your reservation and it has been cancelled.
customer: Thank you for the help.
agent: Thank you for choosing us.
[EX A]:
cancel