Hello, I am Nicholas Edwards.
user
Hello. How can I help you today?
assistant
As my manager did not approve my leave,  I would like to change my recent reservation. Can you aid me with this?
user
Sure, I'll help you in changing an existing reservation.
assistant
Thank you.
user
Please wait a moment I'll check the reservation list.
assistant
Sure, take your time.
user
Thank you for waiting, no reservation was found on your name in our database.
assistant
That's ok, thank you for checking.
user
Thank you.
assistant
Welcome.
user