Hello, I would like [service] and understand this may be [a teaching session / a model session; please confirm]. Please identify who performs the work and who supervises in person, and whether I can choose the person or change the service. List what can and cannot be done, the estimated total duration and whether teaching discussions are included. I need to leave by [time]. If the service cannot be completed or I wish to stop, how is this handled and charged? Please also state booking and rescheduling conditions. I have not agreed to participate.