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: Hello, I am Williams Hernandez.
agent: Hello,. How may I help you?
customer: I want to visit EWR from my hometown MSP, can you help me with single connection of flight?
agent: Ok. Please provide your journey dates?
customer: My depart is on 12/09 and return on 12/11.
agent: Ticket is available with flight number 1011, price is 200. Flight connections is 1 with airline Southwest.
customer: OK, proceed with booking.
agent: Ticket is booked.
customer: Thank you for the help.
agent: Thanks.

Output: book

Input: Consider Input: customer: Hi.
agent: Hello, how may I aid you for the day?
customer: As my scheduled holiday trip got cancelled, I need your help in cancelling my reservation.
agent: Sure, I am here to help you. May I know your name to cancel the reservation?
customer: I am Paul Mitchell.
agent: Ok, I will check the recent reservation on your name and get back to you.
customer: Ok.
agent: There is no reservation found on your name to cancel.
customer: Ok, thanks for the information.
agent: Thank you for contacting us. Have a great day.

Output: no_reservation

Input: Consider Input: customer: Hello, I am Richard Jackson.
agent: Hello, how may I support you now?
customer: As my schedule of attending an press conference got postponed. Can you please help me in changing my existing reservation?
agent: Sure, we are here to help you. Please wait a minute, I will check and get back to you.
customer: Ok.
agent: Thank you for waiting, there were no reservation matches with given name.
customer: Ok, Thank you for your information.
agent: Thank you for availing us.
Output: no_reservation