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: Hi.
agent: Hello, how may I aid you today?
customer: I need to cancel my ticket, can you help me?
agent: Sure, may I know your name?
customer: I am David Parker.
agent: Please wait for couple of minutes.
customer: Sure.
agent: We found a reservation on your name, shall I proceed to cancel?
customer: Yes, cancel it.
agent: Your reservation has been cancelled.
customer: Thank you for your help.
agent: Thank you for reaching us.
[A]: cancel

[Q]: customer: Hello.
agent: Hello, how may I aid you today from my end?
customer: Stephen Hernandez here. I am looking a flight from BOS to SEA, can you help me?
agent: Sure, I am here to help you out. Please provide me your trip dates.
customer: My planning dates are 03/16 and 03/18.
agent: Please wait a moment.
customer: Sure.
agent: Here is a flight with 2 stops and airfare is 100 in 1002 Spirit airlines, can I proceed with it?
customer: I need a direct flight.
agent: Let me check with your request.
customer: Ok, take your own time.
agent: Sorry Stephen, there is no direct flight with your travel dates in your route.
customer: It's ok, thank you for checking.
agent: Thank you for reaching us.
[A]: no_flight

[Q]: customer: Hi.
agent: Hello. How may I assist you today?
customer: I am Christine Jones.
agent: Nice meeting you Jones.
customer: Can you help me in booking from LAX to PHX?
agent: Sure, I will help you. Can you please provide your planned dates of travelling?
customer: My trip dates are 05/11 to 05/13.
agent: Please wait a moment to check the flights.
customer: Sure.
agent: Based on your information, I have found a flight with 1 connection with the fare of 100. Is it ok for you?
customer: You can book it.
agent: Ok, your ticket has been booked in flight number 1004.
customer: Thank you.
agent: Thank you for approaching us, have a great journey.
[A]:
book