Need WordPress Website Builder, User Can Create a Post front-end,

we are looking for web designers to design pages for posting same like Facebook and web talk. we are looking for a WordPress website builder, we need a page post contact or post creator, users can post. we need daily base work for creating posts and publish for the website. you can create advertising and marketing posts with content. just send one message. here. but this task is free. Users can register and create posts and publish them for the public.