To answer your question - It's never the situation that I can truly control, but it has happened.
1) A chick will "lose touch" and then see me out on the town, and be interested again.
2) Something professional comes up in her life, and she says to herself, "I know Archie does something like that" - Lots of chicks are users collect people in their networks
3) I send a pic with a caption (pretending the conversation isn't dead, that she didn't stand me up, etc) - that doesn't require a response from her, but it may elicit one. At which point you're gambling with house money and you can do whatever you want, because the chick is still low percentage (in my view)
^That's basically how you do it.
I do think there's more about this situation that's not in the post, but here's something for the lurkers.
Broadening This Scenario
Usually when I see this question - it's a rookie that thought he had a hot lead - be it from online or offline - and the text conversation dies without plans being made, without actually meeting up.
The response to that situation
1) It's entirely normal for a chick to lose interest very quickly. The number is solid, the first batch of texts/phone calls are solid, tentative plans - and then the chick doesn't follow through for whatever reason. (legit or illegitimate, it doesn't matter.
And
2) Stop taking contact information and go for the bang, right then and there.
Back in the day (Late 90's/early 00s), this is what happened with getting #'s from night game, and the community response was to go for the same night hook up.
See point #1
Girls are busy, flaky, their moods change, their interest changes - AND this behavior is not something that most men can even understand much less predict.
Now a lot of guys today see going for the bang in the first few hours of meeting a girl as way too thirsty or an inappropriate response.
But I can tell from years of doing this, it's better to strike when the iron is hot.
Let the "uninterested" chick flow back into the ether, after you've hooked up with her. (with protection and consensually of course)
Are there girls that will take your contact information, text for a while, stop texting, and then you restart the text and eventually go out with them?
Sure.
Is that strategy something you should rely on?
HELL NO!!!
but mostly the problem here is
3) If you're obsessed about keeping in touch/keeping up with these chicks - YOU DON'T HAVE ENOUGH WOMEN IN YOUR PIPELINE.
Again, what I see a lot of rookies do is make approaches, get a # here or there, and try to "work the phone".
I especially see this pattern with Day Gamers.
Day Game is just a really hard way to meet regularly people, and by people I mean attractive women.
I also see this with guys that primarily do Social Media Game/Dating apps. Tinder is infinitely easier to get those first few signs of progress - but it's still an uphill battle to actually get the girl to meet up.
In both cases, girls are just trickling in.
There usually isn't enough volume in day game.
And with online, the bar of attraction and interaction is so much higher, so much more disintermediated - that in many ways its worse than day game.
But at least with the online stuff, you can use online tactics.
The question to ask....
What can you do to not just make yourself better and your game (social skills) better - but how can you reach more people, more of the girls you want to meet?
In a lot of ways, pick up is like making sales online.
Most guys focus on conversion - perfect message, perfect font, right image - but rookies need TRAFFIC.