Hello,. I am Nicholas Allen.
Hello, how may I aid you today?
I want to change my existing reservation due to my exams got postponed.
Sure, could you please hold a moment, let me check your reservation and revert to you.
Ok.
Thanks for your valuable time, sorry, unfortunately no reservation found in our database with provided name.
Ok, thanks for your information.
Thanks for connecting with us, have a great day ahead.