Well, I didn't mean "see" literally. You will have to ask her about her status. Maybe something like: "I don't know if you are involved with anybody else, but if you aren't, then I'd like to take you out for lunch. Are you free for lunch anytime?" .....And if she says she's not involved and is interested, then you can suggest a time, "How about on your next day off? Or How about Wednesday?" etc.

Of course, you can ask her out for dinner and/or a movie or whatever. That's a really more official date.