Provider Response Times

There's a provider who has toured through my area a couple of times. Ive checked out her website before and never pulled the trigger because of scheduling differences. Last weekend, I saw that she was touring again and stopping by my town for a day, so I sent her an email asking if our specific schedules matched up for a meeting. I also included a brief intro about me, the type and length of meeting Im interested in, and made sure to mention that I would go through her screening process if she was available. She's active on X and I'm seeing her post about the tour and just in general, but I don't get a response. On day 3 of no response, I send a friendly reminder since it's getting closer to her actual tour date (4 days out). She responds saying that she'll get back to me so I continue to wait. Another day (full 24 hours from her response, 4 full days since my initial email) goes by and I dont hear anything. I work for a small team so I completely understand how easy it is to get overrun by requests and inquiries but im getting anxious at this point that we're not going to set something up. I feel like following up a second time is kind of overkill, if she is drowning in inquiries, the last thing I want to do is pile on with another email, but from my end, I feel like 4 days was an ample amount of patience to give. I'd still like to book with her but Im also thinking if its time to just call it a day and try to set something up with someone else?

I've seen 3~4 local providers before but have never seen an out of town/touring provider before so im not sure what the norm is.

Also, I know providers would prefer having screening info fully upfront but from a client's perspective, I feel like a fair compromise is sending screening "lite" with the initial contact to see if schedules could match, with the promise to fully provide the full screening reqs + deposit in order to book. Would love to hear from a provider's perspective if this is fair.