You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Alexander Davis here. 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: I am  sorry no reservation found on  your name in our records.

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

ASSISTANT: Thank you for reaching us.