Encouraging them to book could easily turn into hard work clients and a situation where you can not get rid of them pestering and texting you etc, which I am sure you do not want. If they are wanting dates and free sex they are hardly likely to say ok then here is your fee and I know I am on a timer, out of here in an hour.
Men who persist in this kind of thing deserve one response only, well the one they get from me anyway. Ignore and block. Do not engage in any chat or explanations, just have connections with those who know what the game is all about, booking, turning up, paying and enjoying, oh and then of course leaving and leaving you alone until they book again!
