When you're getting her number

"Hey I'm really busy this week. I have to check my calendar but I'd love to see you again, when are you free around 7pm?"

Pull out your phone and "check". I don't care if you're looking at the home screen, she doesn't know. Schedule your dates on the spot. Don't just get her number. Ask in the fashion demonstrated when she is available. Set the date in person, don't fall back to texting.