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: Hi. 
 agent: Hello, how may I assist you? 
 customer: Due to the sudden demise of my Uncle, I am unable to catch a flight. So I had a request to you to cancel my existing reservation? 
 agent: Sure, could you please provide your name to check the details of your reservation? 
 customer: Sure, I am Eric Garcia. 
 agent: Sorry Eric, I didn't found any reservation on your name. 
 customer: Ok, no worries at all. Thanks for your quality customer service. 
 agent: Thanks for contacting us, have a nice day.
A:
no_reservation