Detailed Instructions: 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
Problem:customer: Hello. 
 agent: Hello, how may I help you today? 
 customer: I have made an earlier reservation to attend for an meeting, due to some issues my meeting has been cancelled. Can you please help me in cancellation? 
 agent: Sure, I will help you in cancellation. 
 customer: Thank you. 
 agent: Can I have your name please to check the status of your reservation? 
 customer: My name is Gary Martin. 
 agent: Please wait for a couple of minutes. 
 customer: Sure. 
 agent: Thanks for waiting, no active reservation was found on your name in the database. 
 customer: Not an issue, thank you. 
 agent: Thank you for choosing us.
Solution:
no_reservation