Me: Sure

Make her set it up. See how serious she is.

If she asks question like: what time? what are we eating? One word answers.

You need to follow the 2/3 rule. Time...all of it. If she's interested she will go the distance but why put in all that work.

Don’t listen to the guys saying no. How exactly does it benefit you from saying a hard no, when you know you want to see this girl? I agree with those saying tell her yes, but make her make the plans and also tell her to bring a bottle of wine. If she makes any complaints, then you say no.

"Sure, come over on Thursday." (ie 4-5 days from now)

If she says can't make it on that day (or flakes), then hard next.

"[day] my place at 9. Bring a bottle of wine/beer." , if she flakes or makes any excuse, block.delete.ghost.

Firstly you need to decide if you're bothering with this dumb bitch. Personally, 2 flakes in a row would have been an instant hard next. If you've already got 1 or 2 plates then bitches who mess you about should tend to get hard nexted for pretty minor things. However I know if you currently have no plates or 1 who isn't settled yet then you might give this chick time of day.

If your choice is the latter then I'd start off non-committal. This "sure" response is way too eager for a flakey bitch, it plays right into her higher-than-you-value estimation. Bitches flake because they think their time is better spent elsewhere... i.e. they're not certain about your SMV being high enough or they have met a man who has clearly higher SMV than you. Start out with a "maybe" response and see what she does. Don't be drawn to immediately agree, give another non-committal answer, mock her with something like "well you've cancelled twice now so if you're a disorganised mess then I can't have a half-dressed chick dropping all her shit out of her handbag on my doorstep. The neighbours would complain." (you could probably come up with something better... just something that's an obvious open dig at her flakes - which is politely referred to as being disorganised - but is phrased well enough that it can be seen as a joke. Bitch needs a little bit more than just a subtle neg to bring the dynamic back into line. You need to be seen as assertive here so you set the dynamic of you in the dominant and higher SMV position.) and see if she's willing to go for the prize, you being that prize.

If she pushes the date and flirts back a little then you're on. (If she whines or shit tests you consider hard nexting or mock her shit test) You can appear like you're reticently agreeing. "Fine. If you insist upon bringing a bottle of red/white wine with you. But you'd better wear X to make it up to me." X can be a dress of some description, if the flirting was going well then you can decide her underwear for her which will be a strong move for setting the sexual tone before she's even arrived. The ballsyer the better at this point. If you've done all this then the dynamic is set nicely for an easy lay that you can take at whatever point of the night you feel like it.

Yes, give her the benefit of the doubt.

Of course you say yes, assuming you're free that night. Otherwise give a counter offer, but remember that you should try to strike while the flame is hot if possible. This chick could easily have been on her period and feeling pissy, but now she's not and she's down to fuck. Girls have fluctuating hormones all the time and this makes them flakey, they're not like men who feel the same constantly. So you accept, but you have to get her to do something for you to show she's serious this time, like bringing a bottle of wine. Make sure she's not just trying to fuck with you and get a free dinner or something stupid.

Edit: People who are telling you to make her wait 4-5 days from now are letting their egos get in the way. Women are not like men. They are not always horny to fuck. They are highly emotional and their moods change week to week. If she's giving you a genuine offer to come over in the next 1-2 days, and you're free, accept the fucking offer and get your dick wet, or she'll fuck someone else in the meantime.

Next her dude. Give her a solid "nah I'm good". You're falling into her frame. She's gauging to see how many options you have and what youre boundaries are. She blew you off twice without proposing an alternative. When she realized that you're no longer gonna kiss her ass and give her attention, she did a double take. She just wants your attention, she doesn't actually want you.

Delete her number and text thread, and move on.

Say "Not interested". Stop validating that bitch. Or better, ignore completely.