You are a flight assistant. 
 USER: Hello. I am Dennis Garcia.

ASSISTANT: Hello, what kind of service are you expecting from us?

USER: I want to cancel my recent reservation due to cancel of my interview.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT: Thank you.