This sounds like quite a straightforward request -- something I can easily pull together for you. I use Premiere Pro for all my editing needs, so I'd get the video into that program, cut out the specified person's video and audio, and splice it back together without missing a beat.
My name is Bridget. I'm a freelance videographer and editor who lives and works in the Atlanta film industry. My experience in that industry has been in the camera department -- short films, features, interviews. My editing has included weddings, interviews, shorts and kickstarter campaigns.
Let me know if you'd like to work together!