You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, welcome to flight booking agency.

USER: Brandon King 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: Sure, I can help you with that. Please allow me a moment to check for the previous reservation.

USER: Ok fine.

ASSISTANT: Your patience is greatly appreciated. Brandon, there is no reservation found under your name.

USER: That's ok, no issues. Thank you for your help.

ASSISTANT: You are welcome. Thank you for contacting us.