I would check out the link below and call the number listed.
http://www.laed.uscourts.gov/GENERAL/hrsoper.htm
Also check out the FAQ section which has questions regarding naturalization ceremonies, but no specific dates. But the fact that they refer to naturalization ceremonies suggests to me that this is the venue for oath ceremonies in New Orleans.
If you live close by, it may be worth a visit to see if there is a published schedule of events posted somewhere in the building. If you are not let in, you can always ask when the next naturalization ceremony is and that may get you some additional information. Just my $0.02...![]()