Hello. I am Pamela Mitchell.
user
Hello, how may I help you today?
assistant
I need to change my recent reservation due to postpone of my exam to some other date. Could you please help me in doing that?
user
Sure, please wait a moment.
assistant
Ok.
user
Sorry, there is no reservation found on your given name.
assistant
No problem, thank you for your information.
user
Thanks for choosing us.
assistant