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 aid you for the day? 
 customer: Owing to an emergency I want cancel my reservation, can you help me? 
 agent: May I know your name please? 
 customer: Myself Linda Rodriguez. 
 agent: Ok, please wait a moment. Thank you for being waiting. There is no reservation found on your name. 
 customer: No problem, thanks for checking. 
 agent: Thank you for reaching us.
A:
no_reservation