It is very uncommon to see a 30 minute treatment protocol for Reflexology. Where are you practicing? How will your sessions be offered - incall, outcall? What are your overhead expenses? Since you are new you will probably offer a lower rate than a colleague who has been practicing for many years.
Lots of things to take into account when deciding how much to charge and you really need to sit down, work out your expenses as a new business owner and determine how much you need to make to clear those. Good luck and congratulations!