Hello spi56bcda5602039,
Yes I can help you to build your conference event website including all features you want.
Here you want a Register features, you mean register for the conference event? where people can join?
I have very good experience in website designing and development using WordPress, PHP, CodeIgniter, MySQL, Ajax, HTML5, CSS3, bootstrap, jQuery, JavaScript etc..
I can give you very good design and well coded responsive works. Website will be W3C validated, cross browser capabilities and well developed.
Lets discuss more details..
Regards
Esha