You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I want to cancel my recent reservation due to some official work. Can you help me for this one?

ASSISTANT: Sure, I will help you with cancellation. May I know your good name?

USER: Sure, Brandon Lee here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for visiting us, we hope see you again.