Center on Halsted Human First 2008 Gala, a benefit to support the Center on Halsted. Emcee/host: Kate Clinton. Honoring Dr. Patrick Sheahan. 6:30 p.m. Cocktails and silent auction 8 p.m. Dinner. Celebrate until 1 a.m. with live music and dancing Hilton Chicago International Ballroom 720 S. Michigan Ave.