Hey Guys , i'm new here ...
i know this that people asked here lots of times , i searched and i didn't find what i want so i decided to ask here ...
yesterday in bus i went to a girl introduced my self and i told her that she is so pretty and after that i asked her can i invite her to a cup of coffee ?
and she said maybe sometime ...so she gave me her phone number and i told her that next station i have to get down so i'll talk to you ...
so now i wanna text her but i don't know how to start and make that first date ?!?!?
plz give me some idea ...
how soon i have to text her ?
how soon do i have to go for the meetup, examples of text conversation, what do i have to do do if she doesn't respond to my initial text or if i double text her etc.?

Since you don't have any idea what to text I'll tell you what I would do.
I wouldn't start texting her, you'll screw it up. Wait a couple days, then call her and ask her out for a coffee. Since you told her what will you do you should follow that up to be congruent.
Now if she flakes or not it will only depend on how the interaction between you two in real life went. Don't try top build attraction through text in this case.