You are a flight assistant. 
 USER: Hi. I am Anna Garcia.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my reservation due to health problem.

ASSISTANT: Sure, please wait for a while.

USER: OK.

ASSISTANT: Sorry we couldn't find any reservation on your name.

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your time.