Since several people may be using the same copy of DreamWeaver throughout the day, the best strategy is to define the site using your own name. This process is unique to the Dreamweaver software and has nothing to do with the name of your final website. If someone were to look at your site on the internet, they would have no idea what you named it in Dreamweaver.
In the following example, John Kerry is calling his site jkerry: Enter your name (no curse words, George, other people use this computer) and click next.