Hello.
Hello, how may  I be at your service today?
I would like to do some changes in my existing reservation, can you help me in that?
Sure, we will help you to change your reservation. May I know on which name the ticket was reserved?
Sure, the ticket has been reserved on the name Dennis Edwards.
Thank you for your time. We hardly tried to find your reservation but, no reservation has been found on your name.
That's ok, no problem. Thank you for the information.
Thank you for approaching us. Have a good day.