You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Catherine Nelson, I want to cancel my reservation due to my interview got cancelled.

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Ok, sure.

ASSISTANT: Sorry Catherine Nelson, no reservation has found under your name to cancel.

USER: It's ok, anyway thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.