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

Example Input: customer: Hi.
agent: Hello, how can I assist you for the day?
customer: Can you please cancel my reservation due to sudden demise of my grand father?
agent: Sure, I am here to help you.
customer: Thank you.
agent: May, I know your good name?
customer: I am Pamela Hernandez.
agent: Sorry, we found no reservation on your given name.
customer: It's ok, thank you for checking.
agent: Thank you for reaching us.
Example Output: no_reservation

Example Input: customer: Hello.
agent: Hello,. How can I amend you today?
customer: I am Jason Young. I want to book a ticket to meet my old friends, can you please help me that?
agent: Sure, we are here to aid you.
customer: Thank you.
agent: Where you want to go?
customer: I want to go from Charlotte, CLT to New York, JFK.
agent: Kindly assign your preferred dates of travelling?
customer: I would like to leave between 05/24 and 05/26.
agent: Thanks for your details. Based on your request we found a plane 1002 of Southwest airline with a connecting flight. Shall I proceed?
customer: Yes, please book this ticket.
agent: Reservation is done.
customer: Thank you so much.
agent: Thank you for availing us.
Example Output: book

Example Input: customer: Hi.
agent: Hello, how may I aid you?
customer: I am Steven Nelson want to attend a workshop at Denver, can you book a ticket from EWR to DEN?
agent: Sure, please tell me your preferable travelling dates.
customer: Sure, my travelling dates will be 09/24 and 09/26.
agent: The AA airline with flight number 1002 is available having price as 100 and connection as 1.
customer: Ok, proceed with my booking.
agent: Ok, your reservation is confirmed.
customer: Thank you.
agent: Thank you for choosing us, have a safe journey.
Example Output:
book