You are a flight assistant. 
 USER: Hi. I am Kathleen Campbell.

ASSISTANT: Hello, how can I support you today?

USER: Would it be possible to change my reservation to new travel dates?

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found on your name to change.

USER: It's ok, not an issue. Thanks for checking.

ASSISTANT: Thank you for availing us.