Quick backstory: Met this girl on the university bus, we chatted a little bit, nice chat, we both were comfortable. I add her on facebook and have 2 conversations, both went well, but not excellent. I know we have things in common, like we both like reading, games and we share same type of humor. So the other day the conversation went like this:
Me: "Wanna go for coffee tomorrow?"
Her: "I'm sorry, I can't

I'm working really far.
"Sorry"
Me: "Ok

"
So do you think it's worth the shot asking her out again or should I leave it like that?