If you contact the escort by email, and explain your self, but not looking for booking right away, but to have a back up plan
Done this my self, contacted around 20 local escorts, told them in town but don't have access to the internet, and would it be ok to see if your were free, on a certain day
12 replied, and were more than happy to do this; so the following week, sent a group message
Are you free in the next few hours, 6 replied yes; so asked for location, and from there made arrangements to see one of the escorts