You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Brenda Walker. I want to cancel my reservation, due to my health issues. Could you help me in cancellation?

ASSISTANT: Sure, please wait a moment I will check and let you know.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.