Hello.
user
Hello, how can I help you?
assistant
As my interview got preponed, so I need to change my reservation. Can you please change my reservation?
user
Sure, please provide me your name?
assistant
Justin Walker is my name.
user
Please wait a minute.
assistant
Ok.
user
There is no reservation with your name.
assistant
Not a problem, thanks for your service.
user
Thank you for reaching us.
assistant