You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Donald Hernandez. I need cancel  my recent reservation due to some personal problems.

ASSISTANT: Ok.

USER: Could you please help me in doing that?

ASSISTANT: Sure. Please wait for a moment, I will check your reservation.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for approaching us.