Definition: 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: customer: Hi. 
 agent: Hello. 
 customer: I am Paul Green. 
 agent: Yes sir, in which way I can assist you at this moment? 
 customer:  I have an important meeting in MCO which is conducting by our CEO to discuss about the performance for the individuals and distributing the awards for the top performers and they are offering a ticket budget of 500, can you please help me in flight ticket booking from EWR with a non connecting flight? 
 agent: Sure, I am mirthful to help you with that. 
 customer: Thank you for considering my request. 
 agent: Please provide your itinerary departure and return dates of travelling. 
 customer: Sure, my itinerary dates are 01/14 and back to my home town on 01/16. 
 agent: Please wait for a couple of minutes I will be back with a best flight in your route. 
 customer: Sure and find the flight as soon as possible that I am in busy work. 
 agent: Yes sir, there is a non connecting flight in your journey and the details are flight number 1017 having with the fare of 200 provided by Southwest airlines. Are you ok with this? 
 customer: That's perfect, you can confirm my flight ticket booking. 
 agent: Sure sir, I have confirmed your ticket successfully. 
 customer: Thank you for your immediate help in my flight ticket booking. 
 agent: Thank you for reaching us, hope you have a great journey. 
 customer: Welcome.
Output:
book