I got a phone number from a girl a week and a half ago. I tried calling her last week to arrange a meeting, but she said she was busy with work and school starting. She did say she'd like to see me some time, or something like that, though, so I didn't give up right away.

This week, I tried calling Monday, yesterday, and today. Yesterday she answered, but said she was in class and I should call back later. The other two times I haven't gotten ahold of her.

Is it time to throw this number away? Any other solutions? Any good way to get her to call back instead?