You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist 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 good name please?

USER: Ok, my name is Dorothy Hall.

ASSISTANT: Please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no reservation found on your name in our database to change.

USER: Ok, not an problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your information.