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 Input:
customer: Hi.
agent: Hello,.
customer: I am Amy Mitchell.
agent: How may I be of your help?
customer: I need to go to New York to attend Culture, Heritage and Folk festivals, can you make a reservation on 01/24?
agent: Sure, we are glad to help you.
customer: Thank you.
agent: Please provide your boarding and landing airport codes?
customer: I want to fly from Los Angeles, CA - LAX to reach NY - LGA.
agent: How much you can afford for a flight ticket?
customer: I would like to return on 01/26.
agent: Ok.
customer: I can afford up to 5000.
agent: We found a connecting flight with flight number 1028. Shall I confirm your booking?
customer: Please reserve.
agent: Your flight ticket is processed from an UA airlines.
customer: Thank you.
agent: Thanks for availing us. Your E ticket will be sent to your registered mail id.

Ex Output:
book

Ex 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.

Ex Output:
no_reservation

Ex Input:
customer: Hi, I am Jennifer White.
agent: Hello, How can I assist you today?
customer: I want a connecting flight to NV - LAS from NY - LGA. Can you please help me in booking a flight ticket?
agent: Sure, we are here to help you. Please provide your price limit.
customer: The price limit should not exceed 1000 with single connection.
agent: Sure, please provide your journey dates.
customer: My depart day will be on 12/29 and arrival day is on 12/31.
agent: Ok, please wait for a moment.
customer: Ok.
agent: Thank you for your patience, we are happy to say that there is a flight found with flight number 1029 and price is 100. The airline is AA.
customer: You can proceed with this airline.
agent: Sure, your ticket has been confirmed.
customer: Thanks for your information.
agent: Thank you for reaching us.

Ex Output:
book