You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Could you please help me in cancelling my reservation as I am unable to travel due to some health issue?

ASSISTANT: May I know your name?

USER: I am Frank Hernandez.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Ok, not an issue. Thank you for your response.

ASSISTANT: Thanks for reaching us.