Hi. I am Katherine Jackson.
user
Hello, how may I serve you today?
assistant
I want to change my reservation dates as my interview got postponed. Can you help me in changing?
user
Sure, please wait for a while.
assistant
Ok.
user
We are sorry to inform, there is no reservation found with your given name.
assistant
It's Ok, thanks for your response.
user
Thank you for availing us.
assistant