You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?

ASSISTANT: Sure, I am glad to help you out. Please provide me your name to check the reservation status.

USER: I am Katherine Edwards.

ASSISTANT: Please allow me a moment  Katherine Edwards.

USER: Sure.

ASSISTANT:  Katherine Edwards, there is no active reservation on your name to amend it.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.