Hello.
Hello, how may I serve you?
I want to do some changes in my existing reservation. Can you help me for that?
Sure, I will help you. Please wait for a moment.
Sure, I will wait for your response.
May I know your name please?
My name is Edward Mitchell.
Sorry, there is no reservation existing on your name.
That's ok, thank you for checking.
You are welcome, have a nice day.