Formal in Louisville Banquet Hall

[TDmkr19]

My fraternity has decided to have our formal in Louisville, KY. A problem I've been running into is that because everyone's attendance is dependent on a budget either affordable hotels don't have the room or if they do they are a little on the pricey side. I was thinking of trying to rent out a banquet hall, but have no idea where to start. Any ideas suggestions, especially if you've done something like this in Louisville, are appreciated.