Nice one, congrats, too bad I can't use that humor, not being Asian and all that haha
Flakes can be avoided if you create more rapport, remember you only talked to these girls for what? like 5 mins at most, they probally won't remember what you said, the instant date will help that, and it enable you to k-close a lot easier in this situation. Good thing is that you're just plowing through regardless of them flaking, it takes some guys ages to learn that.
Something I'm learning more of is a move(for lack of a better term) called "The Claw" which is demostrated by Tyler Durden (From RSD) that I could see being really helpful in this situation, search for it on here, I know I've seen it around, theres a topic about it in the "PUA Lounge" section on here aswell
Good luck