Explain to your boss that you are really into FF miles, and can set her account up, manage it, and maximize the points into it and out of it saving her and the company money. Maybe even 6 months from now do a report on how much she's saved by your doing this, and attempt to get a raise off of this. Outline things like the extra points by booking through UR and travelocity vs. regular booking on United.

That's how I'd go about doing this.