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: Hi. I am Christine Parker. 
 agent: Hello, how may I guide you at this moment? 
 customer: Would it be possible to cancel my recent reservation? 
 agent: Yes, It is possible. 
 customer: Thanks. 
 agent: Please stay online, I will check the previous list and revert to you. 
 customer: Sure. 
 agent: There is a reservation found on your name, Are you shall I proceed for cancellation? 
 customer: Yes. 
 agent: Your ticket has been cancelled. 
 customer: Thanks for your help. 
 agent: My pleasure.
Solution:
cancel