Westin Oaks Houston at the Galleria. Greater Houston Partnership hosts the State of the Airports event featuring Mario C. Diaz, City of Houston Aviation Director (George Bush Intercontinental, William P. Hobby and Ellington Airports) is the keynote speaker.br/ID: Mario C. Diaz addresses the crowded ballroom.br/2/13/14 (Craig H. Hartley/For the Chronicle)