Hello.
Hello, how can I help you today?
I want to do some changes in my existing reservation. Can you help me for that?
Sure, can I have your name please?
My name is Andrew Williams.
Ok, please wait for a while.
Sure, I will wait for your response.
Thanks for waiting, there is no active reservation on your given name.
That's ok, thank you for checking.
Thank you for opting us.