Not sure how the system or regulation will handle, but since this is free, I believe there will be some students who booked but not attending the session, and this might be repeated for many times which causing inconvenience for students who want to come in certain session with certain teacher, but unable to do so because it is 'full' by students who 'no show'. Maybe creating rules that the system will block the student from booking after 2-3 times 'no show' or 'cancel' in the last minute will be helpful for others. But once again it might be stated in the system or email that I might overlook. Overall I am really grateful to have this session.