Hello, I am James White.
user
Hello, how can I help you?
assistant
I need to change my existing reservation, as my exam scheduled got postponed. Please help me in changing?
user
Sure, I am here to help you. Please wait for a while.
assistant
Ok.
user
Sorry, no reservation found on your given name.
assistant
Ok, no issues. Thank you for your service.
user
Thank you for choosing us.
assistant