I think the best option is to take Doug's last option and then make a charitable donation to help kids have a Christmas or whatever you have a passion for. Get a 501c to give you a receipt, and then you can get that warm fuzzy feeling remembering the night you spend with Rosie by writing it off your taxes several months later and maybe again when you get you're refund check. Just imagine reliving the evening again just you, Rosie and the receipt.

Really do some good, rent a movie, and blow your goo over the hotel's TV screen. May I suggest you find a hotel with quality monitors?
My personal preference if I wanted a WOW factor would be:
Spend $300 on a quality provider enjoy a solid hour of one of Dallas's well reviewed providers, you have been provided a list, and then go out later to a club near your hotel that has a crowd of people your age, and a blast, nothing is more fun than partying like a rock star. You may grab a hot civie.
OPTION 2: you could make a date by tossing out an ISO for a two part session where you have that $300 session with the understanding that if you hit it off you will take her out to an exclusive club for a few cocktails and a snack. having an understanding that if all goes well, and you haven't landed a civie

, return and do another $300 session. That should kill your $800 and leave you enough for the cab ride or two.
I have done variations of this for years and it has netted me some great experiences. remember budgets are tight this time of year, gals are thirsty as they need to make bank plus have extra holiday cash, so this may be more doable right now than you expect. Best of all it allows for some spontaneity where you can call it a night, either at your hotel, the club, or after another session. That 2nd session has the potential to be what dreams are made of. I hope you can see the variables here as you could schedule another $300 provider to meet you later and skip the club or meet one for cocktails and cocktails. The options could be endless, but doing 2 providers in an evening is always great, doesn't make any difference if it is two different or one twice.
I hope someone comes up with a plan that you like and I will look forward to seeing what you come up with and how it pans out.