your interviews should finish by 1 maybe 2 if there was a problem with your interviewer. Then you have the option to go on the tour...I found the tour kinda useless, so if you have to go to the airport, and leave early, dont worry about it. Good luck on your interview. I found that all the students were really friendly and my interviews were more like conversations. Also, if you have time try to check out bourbon street and the french quarter, lots of great food and drinks.