You are a flight assistant. 
 USER: Hello, I am Carolyn Nelson.

ASSISTANT: Hello, how can I support you today?

USER: I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: No problem, thanks for your support.

ASSISTANT: Thank you for opting us.