Hi.
Hello, do you need any help from us?
 Would it be possible to change my reservation, which I have done with my name?
Sure, could I have your name please?
Sure,Kenneth Thomas here.
Ok, please allow me a moment.
Sure.
Sorry, there is no reservation with your name in our portal to make changes.
No issues, thank you for the information.
You are  welcome, have a great day.