You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Robert Lopez here.

ASSISTANT: How can I help you?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Please wait a minute.

USER: Ok.

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

USER: Anyway, thanks for the information.

ASSISTANT: Thank you.