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 help you? 
 customer: My planned trip has been postponed due to shortage of holidays. Can you please cancel my recent reservation? 
 agent: Sure, may I know your name please so that I will check the status and get back to you? 
 customer: Michelle Thompson is my name. 
 agent: Ok, please wait a minute. 
 customer: Sure. 
 agent: Thank you for waiting, sorry to say no reservation found with your name. 
 customer: That's not an issue. Thanks for your response. 
 agent: Thank you for reaching us, have a nice day.
A:
no_reservation