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 Q]: customer: Hello. 
 agent: Hello, how may I assist you today? 
 customer: Edward Young here. I would like to change my recent reservation, can you help me? 
 agent: Ok, let me check with your existing reservation for a moment. 
 customer: Sure. 
 agent: Thank you for waiting. 
 customer: It's ok. 
 agent: I'm so sorry to inform you, there is no reservation found by your name in our data base. 
 customer: That's fine, anyway thanks for your help and valuable information. 
 agent: Thank you for approaching our agency.
[EX A]: no_reservation

[EX Q]: customer: Hi. 
 agent: Hello. How may I assist you today? 
 customer: Can you please book me a flight ticket from LAS to PHL? 
 agent: Sure, I will help you. 
 customer: Thank you. 
 agent: Please help me with your name. 
 customer: I am Sarah Garcia. 
 agent: Please let me know with your planned travel dates. 
 customer: I want to start my journey on Sept 11th and return on Sept 13th. 
 agent: Do you need a direct or connecting flight? 
 customer: I am comfortable with both. 
 agent: Please let me know with your preferences in your journey. 
 customer: I want an economy class to travel. 
 agent: Do you have any other preferences in your journey? 
 customer: No. 
 agent: Please allow me a minute. 
 customer: Ok. 
 agent: We have a  connecting flight with two breaks operated by American Airlines with a fare of 100. Is it ok for you? 
 customer: Yes, please proceed. 
 agent: I have booked your ticket in economy class flight-1026. It departs at 0 AM and arrives at 12 PM. 
 customer: Thank you. 
 agent: Thank you for reaching us. Have a great time.
[EX A]: book

[EX Q]: customer: Hi. I want to cancel my reservation, As I have fallen sick and cannot be able to travel. Can you help me with that? 
 agent: Hello. Sure, I will help you with cancellation. 
 customer: Thanks for your response. 
 agent: May I know your good name? 
 customer: Sure, Jennifer Williams is my name. 
 agent: Please wait for a moment, while I search for the reservation on your name. 
 customer: Sure. 
 agent: Thank you for waiting, I found your reservation, shall I cancel your reservation? 
 customer: Yes, please cancel it. 
 agent: Your reservation has been cancelled. 
 customer: Thanks for your help. 
 agent: Thank you for visiting us, we hope see you again.
[EX A]:
cancel