Hi. I am Andrew Baker.
user
Hello, how may I be at your service today?
assistant
Can you help me changing my recent reservation, as my interview is postponed?
user
Sure, we are here to help you.
assistant
Ok.
user
Please wait for a while.
assistant
Sure.
user
Sorry to notify that, we did not find any reservation with your name.
assistant
That's ok, thank you.
user
Thank you for availing us.
assistant