I usually do not teach  younger students  over the school holiday times. However, adult students may book lessons during this time.  After school lessons for  primary and secondary school children, are  booked for 30 minutes at $15/lesson  but with 5 lessons booked and paid for in advance. For adult students,  lessons are for 1 hour @ $30, paid on the day. My cancellation policy is to please give me 24 hours notice of inability to attend the lesson, and another lesson will be booked in lieu.  However, cancelling on the day or not notifying me of inability to attend, means forfeiting of the lesson.