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 at this moment?
customer: I am Pamela Walker here. I am planning to visit a Houston city to meet my grandfather in IAH from LAS. Can you find a flight ticket for me?
agent: Sure Pamela Walker, I will help you with that. Can I have your travel dates please?
customer: Ok, my preferable dates are on 12/19 and back on 12/21.
agent: Ok Pamela Walker, please wait a moment to check flight availability.
customer: Sure.
agent: AA airlines running a flight in your route with connection 1 and the fare of the ticket is 200. Shall I proceed with booking?
customer: Yes, you can reserve the ticket.
agent: Ok Pamela Walker, your ticket booking has done and the flight number is 1021.
customer: Thank you for spending your time.
agent: Thank you for choosing us, have a great journey.

Output: book

Input: Consider Input: customer: Hello,.
agent: Hello.
customer: I am Larry Turner.
agent: How may I address you today?
customer: As, there is a food festival is going to be held in Charlotte, CLT so, I want to my food stall in that festival. So, I need your assistance in booking my flight ticket from Boston, BOS.
agent: Sure, is there any connection preference?
customer: I am comfortable to travel in any flight.
agent: Can I know your preferable travelling dates?
customer: My schedule dates are 03/24 - 03/26.
agent: Please wait a moment I will check and revert to you.
customer: Sure.
agent: We found a Delta airline matching your details with the connecting flight and the price 200.
customer: You can proceed with my booking.
agent: Your booking has been confirmed.
customer: Thank you for kind service.
agent: Thanks for choosing us.

Output: book

Input: Consider Input: customer: Hello, I am Kathleen Garcia.
agent: Hello Garcia, how may I aid you today?
customer: Could you please help me in finding a less expensive flight within price 200?
agent: Sure Kathleen Garcia, I am happy to help you with that.
customer: Thank you.
agent: Yes, there are many flights available to you with in your budget. Can you please let me know airport codes of your journey locations?
customer: Sure, my origin is DTW and final destination is CLT.
agent: If you have planned any particular travel dates, please let me know them. It will help me to get exact flight for you.
customer: I have planned to start on 04/27 and return on 04/29.
agent: Do you have limits regarding connections?
customer: Yes, I need a halt within my route to CLT.
agent: Available flight is providing economy class ticket, is it ok for you?
customer: Yes, that's absolutely fine with me. Please proceed.
agent: Ok Kathleen Garcia, your ticket booking has done in AA airlines and the flight number is 1016.
customer: Thanks for your service.
agent: Thank you for choosing us, have a great journey.
Output: book