You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: My name is Joseph Hall. I want to cancel my reservation due to health issues.

ASSISTANT: Sure, let me check the status and revert you.

USER: Ok.

ASSISTANT: We did not find any reservation on this name.

USER: No problem, thank you for your help.

ASSISTANT: Thank you for reaching us.