Depending on where you travel, many geo-areas do not use TER as much as "our" locales.

And by that I mean either be screened and have scheduled a date before you arrive, or be "pre-screened" by ladies who can take short-notice appointments if you're not sure what your own schedule will be like.

At the very least, have a list of several ladies you'd want to visit with. Don't wait until you arrive to do your research.

Sad is the tale of the traveller who arrived with both money and free time, but could not find a lady he liked, get screened by, and schedule with before his trip ended.

As I'm not a client, take my advice with a grain of salt, but that frustration is the one I hear most often from visitors.