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.
agent: Hello. How can I assist you today?
customer: My name is Janet Rodriguez. I have a plan to meet my friend in Seattle, can you help me for booking a flight ticket?
agent: Sure, I will help you in booking. Can you please help me with your travel dates?
customer: My travelling dates are from 03/30 till 04/01.
agent: Ok, may I know your airport codes?
customer: My travelling airport codes are from MCO to SEA.
agent: Here, I found a flight for you with 1 connection and fare is 100. Shall I proceed?
customer: Ok, please proceed for booking.
agent: Your booking is done with flight 1015 and airline is Spirit.
customer: Thank you for booking.
agent: Welcome, have a safe flight.

Output: book

Input: Consider Input: customer: Hello.
agent: Hello. How may I assist you now?
customer: Can you please book a ticket from OAK to DFW to attend Sports festival?
agent: Sure, I will help you with that. Can you please provide your preferable dates of travelling?
customer: My journey dates are Feb 23 and Feb 25.
agent: May I know your name to book a flight ticket?
customer: I am Rebecca Hernandez.
agent: Do you have any connection limit?
customer: Yes, I want single connection.
agent: Any more specifications do you have?
customer: No.
agent: Please wait a moment.
customer: Ok.
agent: As per your details, one of the flight 1006 which is providing by American airlines with a fare of 100 and there is a 1 stop, can I confirm your flight ticket booking?
customer: Ok, please proceed.
agent: Ok, your ticket has been confirmed in economy class.
customer: Thank you.
agent: Thank you for reaching us.

Output: book

Input: Consider Input: customer: Hello, I am Christine Carter.
agent: Hello, how may I help you at this moment?
customer: As my manager did not approve my leave, so I would like to cancel my ticket.
agent: Can I have a moment please?
customer: Sure, take your time.
agent: Sorry, no ticket is showing on your name.
customer: That's ok, may be my friend has cancelled it before.
agent: Yes, it may be. Thank you for approaching us.
customer: Welcome.
Output: no_reservation