You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I support you today?

USER: I want to cancel my recent reservation due to sudden postpone of my business meeting. Can you help me in doing that?

ASSISTANT: Can I have your good name please?

USER: Sure, I am Amy Hall.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is no reservation found with your given name in our records.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.