You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

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

ASSISTANT: Sure, I am here to help you. Can I know your good name to check your reservation status?

USER: My name is Karen Baker.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we have not found any active reservation on your name in our records.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for choosing us.