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. 
 customer: I am Angela Mitchell. 
 agent: How may I serve you today? 
 customer: I want to cancel my recent reservation due to cancel of my event at Charlotte. Could you please help me? 
 agent: Please wait for a moment, I will check your reservation and revert to you. 
 customer: Sure, I will wait for your response. 
 agent: We are glad to inform you that there is a reservation found with your given name in our records. Shall I confirm your cancellation? 
 customer: Yes, please proceed. 
 agent: Your ticket has been cancelled. 
 customer: Thank you for your service. 
 agent: Thank you for connecting with us.
Solution:
cancel