Hi. I am Ruth Evans.
user
Hello, do you need any help from us?
assistant
I want to change my existing reservation due to postpone of my exams, so can you please change my reservation?
user
Sure, please allow me a moment.
assistant
Ok.
user
Sorry, there is no reservation with your name in our portal to make changes.
assistant
No problem, thank you for the information.
user
You are welcome, have a great day.
assistant