You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Actually my Snooker's competition is postponed, so that I wane change my existing reservation. Can you help me?

ASSISTANT: Sure, may I know your name?

USER: Yes, I am Brandon Edwards.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

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

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your information.