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 can I aid you? 
 customer: I would like to cancel my recent reservation, can you help me in that? 
 agent: Can you please let me know your name? 
 customer: Sure, myself Dorothy Robinson. 
 agent: Sorry, there is no active reservation found under your name. 
 customer: That's ok, no problem. Thank you for the information. 
 agent: Thank you for reaching us.
A:
no_reservation