Hello.
Hello. Is there any help that you need from my side?
Myself Jason Parker. I would like to change my existing reservation, which is done recently. Can you  help me out?
Sure, we are glad to help you and I need some time to check it. Please wait for a while.
Thank you for considering my request.
Thank you for waiting, no reservation is done in our booking list when I have checked with your criteria.
Not a problem , anyway thank you for the information.
You are most welcome and thank you for reaching our agency with your query.