What do you text a girl after a long time?

Hello community 1 month ago I've asked a girl if she wanted to go on date with me so we can get to know each other well. But she said that she was very busy which she was actually because one week before that she told me that she missed some classes and she had to study a lot. Now I want to try again but I really don't know what to text her and I want to ask you if you have any advices for me.
What do you text a girl after a long time?
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