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, I am Daniel Davis. 
 agent: Hello, how may I assist you today? 
 customer: As I am planning to brother birthday party, but due to some reasons it has been postponed. Could you please cancel my reservation. 
 agent: Sure, wait a moment, let me check and get back to you. 
 customer: Ok. 
 agent: sorry, unfortunately no reservation found with provided name. 
 customer: Thank you for providing me the information. 
 agent: You are welcome, thanks for your interest.
Solution:
cancel