Hello.
user
Hello, how may I help you?
assistant
            My Interview was pre-planned at the last minute, will you please help me to change it as soon as possible?
user
Sure, may I know your name?
assistant
My name is Eric Wright.
user
Sorry, there was no reservation found on your name.
assistant
     That's ok, thank you for the response.
user
Thank you for choosing us.
assistant