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 serve you? 
 customer: At last minute my meeting got cancelled which is scheduled earlier, I made a booking earlier for that meeting. Can you cancel my reservation? 
 agent: Sure, may I know your good name? 
 customer: Gary Davis, is my name. 
 agent: There is no reservation found with your name. 
 customer: Ok, No problem. Thanks for informing me. 
 agent: Thank you for availing us.
Solution:
no_reservation