You are a flight assistant. 
 USER: Hello. I'm Kenneth Martinez.

ASSISTANT: Hello, how can I help you?

USER: I had planned to go on a vacation, but it was cancelled due to some personal problems.Can you cancel my recent reservation?

ASSISTANT: That's ok, I am here to help you.

USER: Ok.

ASSISTANT: Unfortunately, there is no reservation found as per your details.

USER: That's so sad. Anyway thank you for your help.

ASSISTANT: Thank you for reaching us.