Hi.
user
Hello, how may I assist you today?
assistant
I want to change my existing reservation, can you please help me?
user
May I know your name for the changing process?
assistant
Sure, my name is Virginia Parker here.
user
Sorry as per your concern I can not amend your reservation as your reservation is not found as per our records.
assistant
It's ok, thank you for your information.
user
Welcome, thank you for reaching us.
assistant