Shoot Video at Mortgage Conference in Las Vegas

Looking for someone to shoot promotional and testimonial videos at a mortgage conference on November 5th and 6th at Caesars Las Vegas, approximately 5-6 hours each day. I'd like to receive the raw video files. I'm not looking for video editing at this time. There will be approximately 500 attendees. We will have a booth in the hallway, and most people interested in shooting a video will just walk up and ask. For other videos you will have to walk around in the exhibitor hall. Anyone can shoot a 1-4 minute video to talk about their business, discuss an industry topic, or give a testimonial about the event. I'd also like to have some b-roll in the foyer and exhibitor hall, everything will be confined to a small area. We don't need a backdrop, just a camera, mic, and basic lighting.