Hello.
user
Hello. How may I assist you?
assistant
I am Dennis Campbell. I would like to change my recent reservation, can you help me with this?
user
Sure, I will help you. Please wait a moment.
assistant
Sure, take your own time.
user
Dennis, no reservation has been found on your name in our database.
assistant
That's fine, anyways thank you for your help.
user
Thank you for choosing our service.
assistant