Hello.
Hello. How may 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 to check with the details.
My name is Dennis Johnson.
Please wait a moment.
Sure, I will wait for your response.
Sorry, there are no active reservations on your name to change.
That's ok, thank you for checking.
Thank you for reaching our service.