You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mark Taylor here.

ASSISTANT: How can I assist you today?

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

ASSISTANT: Just a moment please.

USER: Ok.

ASSISTANT: Taylor, I did not fine any active reservation on your name to cancel.

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

ASSISTANT: Most welcome.