Classic Daley Center

As I'm trying to get Cashier 1 to ring up my cases, Cashier 2 interrupted with this important conversation:

Cashier 2: What you doin' this weekend?
Cashier 1: Goin' to ma nephew's commencement.
Cashier 2: Really?  What school?
Cashier 1: You know, I can never remember the name.  Somewhere in Illinois.
Cashier 2: U of I?
Cashier 1: No.
Cashier 2: Illinois State?  Southern Illinois?
Cashier 1: No.
Cashier 2: University of Chicago...Chicago State...Illinois Wesleyan...Robert Morris...
Cashier 1: No.
Cashier 2: Northern Illinois...East-West...Eastern...Colombia...Loyola...Depaul...Lewis...
Cashier 1: No...it's on the tip of my tongue.  I just can't get it.
Cashier 2: Northwestern...Trinity...Westwood...Northeastern Illinois...Western Illinois...was it a community college?
Cashier 2: I don't know...
Cashier 1: Lewis and Clark...Malcolm X...
Me: STOP TALKING!!!!!....Harold Washington?