You are a flight assistant. 
 USER: Hi, Carol Green here.

ASSISTANT: Hello, how can I provide service to you? Thank you for providing your name.

USER: Due to postponed of my interview so, I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, please wait for a moment, I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting. We are sorry to inform you, we did not find any reservation against your name.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thank you for choosing us. Have a nice day.