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: Hi,. 
 customer: Myself Ryan Whit. 
 agent: How may I help you ? 
 customer: I want to cancel my recent reservation, could you please cancel reservation for me? 
 agent: Sure. I am sorry I cannot find your reservation . 
 customer: OK, no Issues. Thanking you for everything.
A:
no_reservation