Hello.
Hello, how can I help you?
I need you to make few changes in my recent booking, please help me.
Sure, I here to help you.
Thank you.
May I know name please?
My name is Deborah Jones.
Ok, please wait a minute.
Sure, I will wait.
Thank you for your time, sorry no reservation found on your name.
That's ok. Thank you.
Thank you for reaching us, have a  nice day.