You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: Yes, I am Ronald Lewis.

ASSISTANT: Please be on hold.

USER: Sure, I will.

ASSISTANT: There is no reservation found on your name in our database.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.