How to reject woman like a gentleman?

I've always been good with woman but ever since I swallowed the pill and have been hitting the gym and getting my life on track. A lot of woman have actually been approaching me

Of course we love that attention. But sometimes these are woman I am not really interested in. Or woman who are looking for dates/relationships or even woman that I work with.

Yes I flirt and they see I get a lot of woman attention. But I'll get asked things like. "When are we going to hangout?" Or "we need to go out sometime". How do I respond to this if I am not interested. In a way that will make them still cool with me?