Hello, I am Robert Campbell.
user
Hello, how could I help you at this moment?
assistant
My board meeting has been postponed so, I want to change my existing reservation. Can you help me to change my reservation?
user
Sure, please wait for a while, I will check with your existing reservation.
assistant
Sure.
user
Thank you for waiting, there is no reservation found on your name.
assistant
Ok, Thank you for your service.
user
Thank you for approaching us to change your existing reservation.
assistant