Virtual Assistant with excellent internet marketing skills

I require a Virtual Assistant with whom I can build a long term relationship. Who wants to get to know me and my businesses. I have two businesses and a the bulk of my leads and business comes via the internet. I want someone who can help me build my social media presence and the brands of the businesses. They must be capable or responding quickly to requests like research flights to Copenhagen or please send email campaign to these clients. It will be part marketing part admin. They must be totally trustworthy, reliable and someone who likes to build a close relationship with their client.