I have been in this situation a couple of times.

You ask a girl out(or over) she says yes. But she has no free spot this week.

So asking a week after that, I already feel like I am chasing. I know that I can get a date or a lay if I keep trying. Or at least 75 percent chance. It somehow takes 3 times to ask. And it takes at least 4 dates and good sex before some women will take initiative.

How do I ask a girl out or over mutiple weeks in a row without looking desperate?