Hello, I am Donna Moore.
user
Hello, how may I help you today?
assistant
Please help me to alter my reservation as my exam scheduled has been postponed. Could you help me in changing my existing reservation?
user
Sure, please wait for a while.
assistant
Ok.
user
Sorry, there is no reservation found on your given name.
assistant
Ok, no issues at all.
user
Thanks for choosing us.
assistant
Thank you.
user