You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

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

ASSISTANT: Ok, may I know your name to proceed further?

USER: Ok, my name is Sharon Roberts.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to change.

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

ASSISTANT: Thank you for reaching us.