Q: 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
customer: Hello. 
 agent: Hello. How can I help you? 
 customer: My business meeting has been cancelled. So, I would like to cancel my reservation. Can you please help me with that? 
 agent: Sure, can you please tell the name on which your the reservation is confirmed? 
 customer: Sure, my name is Virginia Mitchell. 
 agent: Yes, I found the reservation. Shall I proceed with the process that you have requested? 
 customer: Yes, please proceed with cancelling my reservation. 
 agent: Your reservation is cancelled successfully. 
 customer: Thank you for your help. 
 agent: Thank you and have a nice day.
A:
cancel