You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: As I am suffering from fever, so I need to cancel  my reservation. Will you help me out in this?

ASSISTANT: Sure, I will help you. Can I have your good name please?

USER: Sure, my name is Mary Wilson.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: No problem, thanks for your support.

ASSISTANT: Thanks for choosing us.