For information on various houses of worship in New Orleans, please see this link.
The closest houses of worship to the conference hotel are the following Catholic churches: St. Patricks on Camp Street and Immaculate Conception on Baronne Street.
Information on Catholic church masses for the August 15 Holy Day:
724 Camp Street
Vigil Mass on August 14th at 5:30 p.m.
On August 15th mass will be said at 11:30 a.m., 12 :15 p.m. and 5: 30 p.m.
130 Baronne Street
Vigil Mass on August 14th at 5:15 p.m.
On August 15 masses will be said at 7:30 a.m., 12 noon, and 5:15 p.m.
St. Louis Cathedral
Vigil mass on Agust 14th at 5:00 p.m.
On August 15th mass should be said at 7:30 a.m. and 12 noon.