Hi.
Hello, how can I assist you today?
I want to change my existing reservation. Can you help me out in this?
Sure, I will help you with that.
Thank you.
May I know your name to check your details in our database?
I am Mark Williams.
Please wait for a while, to check the present status of your earlier reservation and let you know.
Sure.
Thank you for waiting.
My pleasure.
I have checked in reservation list to change your ticket, but could not find any reservation with your name.
It's ok, not a problem.
Thank you for reaching us.
Thank you for your information.
Have a blissful day!.