Hello.
user
Hello, do you need any help from us?
assistant
My wedding venue has been changed, so I want to amend my reservation.
user
Sure, could I have your name please?
assistant
Dorothy Hernandez here.
user
Ok, please allow me a moment.
assistant
Sure.
user
Sorry, there is no reservation with your name in our portal to make changes.
assistant
No problem, thank you.
user
You are welcome, have a  great day.
assistant