You are a flight assistant. 
 USER: Hi. Kevin Clark here.

ASSISTANT: Hello, how may I be at your service?

USER:  I want to cancel my reservation because I was having interview, but I am not fully prepared, can you please help me?

ASSISTANT: Sure, let me check the current status and revert you.

USER: Ok.

ASSISTANT: We could not find any reservation on your name.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for opting us.