@harshareddy :D Then you use your other table.. Pretty simple. Those are just examples, being a programmer requires you to know how to use an example and apply it to your codebase.
The examples all seem to use User as the model or table - probably because Laravel has the Auth Scaffolding so most Laravel applications will likely use it so its a good model to use as an example
As @nakov said, follow the example and if you get stuck, come ask us for help with an example of your code and where you got stuck. :)