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

Input: Consider Input: customer: Hi.
agent: Hello, how can I help you today?
customer: Can you please help me in changing my recent reservation?
agent: Sure, can I have your name please?
customer: Sure, my name is Sharon Parker.
agent: Ok, please wait for a while.
customer: Sure.
agent: Thanks for waiting, there is no active reservation on your given name.
customer: Ok, No issues. Thanks you.
agent: Thank you for opting us.

Output: no_reservation

Input: Consider Input: customer: Hi, I am John Nelson.
agent: Hello, what kind of assistance you are looking for?
customer: Can you please help me with booking a flight ticket from LAX to IAD?
agent: Sure, I am ecstatic to help you.
customer: Thank you.
agent: Let me know, how much you can afford for this journey?
customer: I can afford up to 5000.
agent: Do you have any class preference?
customer: I prefer business class.
agent: Kindly, share your travelling dates to proceed further.
customer: Travel dates are 12/06 and 12/08.
agent: Thank you for sharing your details. Please, hold on for a while.
customer: Ok.
agent: Thank you for waiting, there are no flights available with your requirements.
customer: Ok, no issues. Thanks for the help.
agent: Thank you for approaching us.

Output: no_flight

Input: Consider Input: customer: Hello.
agent: Hello, how can I support you today?
customer: I am Kimberly Green. I want to book a flight ticket from IAH to IAD. Can you find a flight ticket for me?
agent: Sure, we are here to make a reservation for you. Please share your planned journey dates.
customer: Thank you, my itinerary dates are on 11/13 and return on 11/15.
agent: Ok, Is there any halt?
customer: Yes, I need one connecting flight.
agent: Ok, please wait.
customer: Ok, take your time.
agent: Thanks for your time, there were no flights found based on your requested dates.
customer: It's ok, not a problem with that. Anyways thank you for your help.
agent: Thank you for availing us.
Output: no_flight