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
Q: customer: Hello. 
 agent: Hello, how may I serve you at this moment? 
 customer: Jennifer Rodriguez here. I want to cancel my recent reservation. Can you help me in that? 
 agent: Sure, I will help you. Please wait for a moment. 
 customer: Ok. 
 agent: Sorry, there is no reservation existing on your name. 
 customer: OK, not an issue. Thank you for checking. 
 agent: You are welcome, have a nice day.
A:
no_reservation