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, how can I assist you today? 
 customer: Can you please aid me to cancel my recent reservation? Because my planned trip got cancelled suddenly. 
 agent: Sure, may I know your name please? 
 customer: Thank you for accepting my request. My name is Ronald King. 
 agent: Ok, please wait for a while. 
 customer: Ok. 
 agent: Sorry, there was no reservation found with your given name. 
 customer: It's ok, not a problem with that. Anyways thank you for checking the ticket status. 
 agent: Thank you for opting us.
Solution:
no_reservation