Update:
I don't know if she's a scam or not, but I decided not to meet her and I let her keep the deposit. She may be legit, but it felt like I was being set up for some kind of rip off:
1) I saw another Tryst ad for her that said she was going to be in Virginia on the same dates, and when I told her she made a lame excuse and then changed the ad back to Roch;
2) I checked in with her last night to see if we were on and she said yes, but this morning she seemed to have forgotten until I texted her twice;
3) I asked her to send a selfie, which she did but it looked nothing like her ad pics and had different hair and eye colors;
4) She said that she would meet me in the lobby rather than give me her room number when I arrived;
5) after all this, she asked if I would bring her flowers, which is very unusual and would be a good way for anyone to spot me when I walked in.
I asked her to address my concerns and she did not.
So, she may be legit and I may be an asshole (well, of course I am) but I decided to think with the big head for once.
Thanks for listening.