Help on a seller?

Just wondering if I could receive some advice about an online transaction through a Facebook buy and sell group. This weekend, i messaged someone about requesting a personalized Christmas ornaments. As soon as I sent the messaged the person about this, she responded ASAP and said it would be no problem. She also said to me either Wednesday (today) or Tomorrow would be fine to meet as it gives her time to complete the ornament. I just received a response from her this morning asking if we could meet tomorrow. I said sure, suggested a local place, gave her the make and model and colour of my car to meet at the parking lot. I see that my message has been read, but there has been no response.

I don’t want to stand her up: she’s creating a personalized item for me. But I can’t keep waiting 3 to 4 days for a response that would only take her seconds to write. How do I proceed with this?

I just sent her this: “Please let me know at your earliest convenience when and where would be an appropriate place and time to meet for tomorrow. I don’t live in the local area so it’s easier for me to meet up after my work shift at 5 PM. If I don’t receive a response by 10PM this evening, I will not be able to meet tomorrow. Thanks”