You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What kind of help are you expecting from my side?

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

ASSISTANT: Sure, hold on for a moment. I am sorry to inform you that there are no reservations with your name.

USER: No problem as I already wanted to cancel the reservation. Thank you for your time.

ASSISTANT: Thank you, have a good day.