<human>: Can you summarize the given text in a few sentences?

So this seems to happen way too often (like, over half the time).  I must have shitty timing.  I meet a girl I'm interested in getting to know better, but naturally in some way, shape, or form she is always about to be separated from me geographically.

Be it because it's the end of the semester before one (or both) of us leaves town, right before a long break, or, more recently, right before she leaves town for a long vacation (like 1.5-2 weeks), the girl I'm about to ask out always is about to leave town.

In the past I've tried to do something with them once before they leave to establish that attraction/intention for whenever they get back, but so far this hasn't worked at all.  Either something happens while they are gone or they lose interest or something.

Well, it happened yet again and a girl I met is about to leave for about a week and a half.  I have three days before she leaves to see if she wants to get together but one day is a no-go.  Does anyone have experience with the misfortune of meeting people right before breaks of some sort and how to get past that without losing interest/attraction from the girl?  Should I try to get together with her or just wait till she gets back about two weeks from now?

A bit of background:  she and I are acquaintances at work and although we've had very short conversations before, the nature of our work is such that these are limited in scope, and we don't see each other often at all, so our face-to-face interaction is very limited.  (I just simply want to get to know her better, as I said, and see where things go.)
<bot>: Girl I'm attracted to but barely know is about to leave town in a few days for a couple weeks; should I try to get together with her once before then or wait till she gets back to ask her on a date?