You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to cancel my reservation due to some health issues?

ASSISTANT: Sure. May I know your name please?

USER: Sure, my name is Mary Hernandez.

ASSISTANT: Wait for a moment please.

USER: Sure.

ASSISTANT: Thanks for your time. I have not found your flight reservation to cancel it.

USER: Not a problem, thank you.

ASSISTANT: Thank you.