Hello.
Hello. How can I assist you today?
I want to do some changes in my existing reservation. Can you help me for that?
Sure, may I know your name to check for the previous reservation?
My name is Rebecca Moore.
Please allow me a moment.
Sure, I will wait for your response.
There is  no reservation found under your name in our data base.
That's ok, thank you for checking.
Thank you for contacting us.