You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your name please? Please wait for a while.

USER: Ok, I am Kathleen Clark. Sure.

ASSISTANT: Sorry to inform you, there is no active reservation found with your name in our records.

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

ASSISTANT: Most welcome.