Hello. I am David Wright.
user
Hello, how can I assist you today?
assistant
I need to change my existing reservation, as my exam scheduled has been postponed. Please help me in changing?
user
Sure, please wait for a moment.
assistant
Ok.
user
Thanks for your time, there was no reservation found on your name.
assistant
Ok, no issues. Thanks for your service.
user
Thank You for availing us.
assistant