You will most likely want to fly into either Houston Hobby Airport (HOU), or Bush Intercontinental Airport Houston (IAH).
Options include renting a car, or taking an airport shuttle. Here are some links to companies that provide shuttle service:
We have reserved 100 rooms for the conference, which will be give out on a first-come, first served basis. Please reserve your room by August 1 to ensure you get the conference rate.
Book your room using this link