From here, you can easily get her to wait for you to arrive; however long that may be.
Then you can get her to take off her clothes on webcam and then having cyber sex with you.
Once you have done these things, upon arrival all you will have to do is invite her to her hotel and have sex with her.
One of the most important factors in getting laid, is having the opportunity.
You can give the two of you the opportunity by setting the date up close to your hotel and making an excuse for the two of you to go back to your hotel ie: show pictures, watch a movie, charge your phone, get out of the heat (air conditioned room) etc.
There aren’t too many great online dating options in the DR, however, I found one gem.