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: Hi. 
 agent: Hello. How can I help you at this moment? 
 customer: I want to change my existing reservation which is done recently due to some health issues, can you please help me? 
 agent: Sure, I will aid you in changing your reservation. 
 customer: Thank you for considering my request. 
 agent: May I know your name please. 
 customer: Sure, my name is Joshua Green. 
 agent: Sorry to say this, no reservation found on your name in our database. 
 customer: Ok, no problem. Thank you for your service. 
 agent: Thank you for reaching us.
[EX A]: no_reservation

[EX Q]: customer: Hi. 
 agent: Hello,how can I support you today? 
 customer: I am Brandon Rodriguez. I want to watch live ice sating at New York, NY - JFK. Can you help me in my booking? 
 agent: Sure, we are here to help you for booking. 
 customer: Thank you. 
 agent: Let me know your source point. 
 customer: My origin is LAS. 
 agent: Ok, please share your journey dates. 
 customer: My journey dates are from 10/31 to 11/02. 
 agent: Ok, please wait for a moment. 
 customer: Sure. 
 agent: Unfortunately, there were no flights are running at that location due to abnormal weather conditions. 
 customer: Not an issue. Thank you. 
 agent: Thank you for availing our agency.
[EX A]: no_flight

[EX Q]: customer: Hello. 
 agent: Hello, how may I assist you today? 
 customer: Would you please confirm a seat in flight which is heading to Boston, BOS? 
 agent: Sure, we will help you. 
 customer: Thank you. 
 agent: Can you please share your connection limit? 
 customer: Yes, I need to halt in between my journey. 
 agent: May I know your landing point? 
 customer: It's BOS, Boston. 
 agent: When you are planning to make your journey? 
 customer: I planned my journey on 07/01 to 07/03. 
 agent: Can you please let me know your take off airport? 
 customer: Origin point is Minneapolis, MSP. 
 agent: Ok, please be on hold. 
 customer: Sure. 
 agent: We found a connecting flight with Delta airlines, flight number 1006 and the fare of 100. 
 customer: Ok, you can confirm a seat. 
 agent: To proceed further, may I know your name please? 
 customer: I am Margaret Wright. 
 agent: Ok, your ticket has been confirmed with the name of Margaret Wright. 
 customer: Ok, Thank you. 
 agent: Thank you for reaching us.
[EX A]:
book