<human>: I work at a credit union as a loan officer taking loan applications over the phone. In an office that has 17 employees total, I am one of six call center employees.  Four of us share a room with cubicles; while two of my co-workers (males) have their own private offices. They have been "grandfathered" in to work a Monday-Friday schedule.

One of the guys who has an office has no called/no showed twice in the past six months for a week at a time when he was scheduled to train an employee.  

I was the only female in this setting for the first year that I worked here.  I have more experience than my coworkers.  I am way more motivated and responsible than my peers: I have surpassed them by taking more tests, and gaining credentials that are part of our career path.  

My manager is the southern conservative type who has worked with the bank for 25+ years and seems to favor males.

The problem is that in the past any time I bring up an idea with my manager, she tends to  shoot me down. 

I'm in grad school for a Masters in Library Science and I am one class away from graduating. The final class I need is on a Saturday from 9:00-3:00. Currently I work 8:30 to 5:30 Tuesday-Saturday. I would like to negotiate working a Monday-Friday schedule even temporarily while I complete my last class. 

I have been at a training seminar (taking on more responsibilities).  At training, I learned from fellow employees at other branches that their managers allowed them much more leniency in shifting their days around.  Other than growing a pair and morphing into the opposite gender, what can I do to convince my boss to work with me on this!?

Can you give me a shortened version of the text?
<bot>: I'm in grad school and need one last class that conflicts with my work schedule and my boss doesn't seem to want to work with me, what am I to do?