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
Q: customer: Hello. 
 agent: Hello, how may I serve you at this moment? 
 customer: Pamela Anderson here. I need to cancel my recent reservation due to some issues, can you help me? 
 agent: Sure, I will help you. Please wait for a moment. 
 customer: Sure, take your time. 
 agent: Sorry, there is no reservation existing on your name. 
 customer: Ok, no issues. Thank you for the information. 
 agent: You are welcome, have a nice day.
A:
no_reservation