You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Myself Laura Baker. I need to cancel my reservation because my trip dates are postponed.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that no reservation found on your given name.

USER: Thank you for giving information.

ASSISTANT: Thank you for opting us.