Hello.
Hello, could you please tell us for what help you approached us?
Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you help me?
Sure, could I have your name please?
Sarah Brown here.
Ok, please allow me a moment.
Sure.
Sorry, there is no reservation with your name in our portal to make changes further.
No problem, Thanks for the information.
 You are welcome, have a great day.