I preach nexting because there are other fish in the sea, and do I really wanna waste my time on a woman that wasnt interested enough not to break our plans? Plus its likely shes seeing other dudes, which is all well and good, but flaking cements the idea in my mind that shes fvking other dudes.
Either way, I next flakes because I know the difference between an interested woman and an uninterested woman. My time is better spent on chicks who really want to see me. I will give this chick less flack for at least giving you more than a day's notice, unlike some chicks.
In OP's case Id tell him to tell the girl to hit him up next week when he knows his schedule. Id likely say something like "ok, that's cool. I dont know my schedule just yet though. So hit me up me at the beginning of the week to make plans". Now its up to her to show interest. OP shouldnt have to go contacting her to lay out his schedule.
Let her show some interest. If she doesnt hit him up, he can just delete and move on. In the meantime, keep Tinder-ing OP.