Met this girl online, we've been on two dates (that have gone well).

We had plans for dinner tomorrow, but she canceled last night saying that she forgot she had a doctor's appointment Thursday (she's recovering from back issues) so she's going to be eating dinner and staying at her sister's, who lives 45 minutes away, tomorrow night.

I texted back that it was no big deal and to let me know when she's free. She never answered, and normally I know the advice is to typically just next her. However, I like her a decent amount and am willing to send one more text even if it may be ignored.

How do I do this without coming across as too needy?