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. 
 customer: I am Kimberly Baker. 
 agent: How may I aid you now? 
 customer: I need to cancel my reservation, can you help me out please?'. 
 agent: Ok, please wait. 
 customer: Ok. 
 agent: Sorry there is no booking been found on your name. 
 customer: That's ok, no problem. Thank you for reaching us. 
 agent: Thank you for choosing our agency.
A:
no_reservation