Depends on how each escort handles his own business.... most guys I know do some "canvassing" months in advance collecting emails and numbers of interested clients. Once they arrive they have clients who contacted them in advance and those who simply saw their ad during their visit. Maybe he changed plans and decided to stop by Buffalo or had to do it because of other personal issues and had no time to advertise.
@BuffaloKyle I wish more clients had your considerations and duly prepare themselves for a date with a provider.