You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Virginia Taylor.

ASSISTANT: How can I help you Taylor?

USER: I want to change my existing reservation, as my cousin's wedding got postponed suddenly.

ASSISTANT: Sure, please wait for a while to check your reservation status. Sorry, there is no reservation found by your name.

USER: Ok, not an issue. Thank you for your time.

ASSISTANT: Thank you and have a nice day.