Hello,.
user
Hello.
assistant
I am David Baker.
user
How can I aid you today?
assistant
I want to change my existing reservation as my interview got postponed, please help me out.
user
Sure, I am here to help you.
assistant
Thank you.
user
Please, wait.
assistant
Ok, take your time.
user
Thank you for being patience. I am here to inform you that, there is no reservation found on your name.
assistant
That's fine, thank you for the response.
user
Thank you for opting us.
assistant