Need help on my text game. Over the past week I've gotten 4 girls numbers. Two of them looked me up on FB (I dated one 5 years back, met the other at a bar I bounce), the other two I met randomly but we seemed to click so I asked for their numbers including "we should do something this week".

Now I've hit them all up and only one has responded. I text a variation of of "hey, this is xxxx from ABC, let me know when you're free this week and we can get to gether". The girl I dated 5 years back went out for coffee with me, said later that night that we should do it again soon, but then has been silent since. What am I doing wrong?