Hello. Justin White is my name.
user
Hello, how can I assist you at present?
assistant
 I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.
user
Sure, I am here to aid you for changing.
assistant
Thanks for considering my request.
user
Ok, please wait for a moment.
assistant
Sure.
user
Thank you for your patience, No reservation was found on your name.
assistant
That's Ok, thanks for your assistance.
user
Thank you for availing us.
assistant