You can do it. You can go directly to the school cafeteria and ask whether this booth is rented or not, and what conditions are needed for renting. Then you prepare it, and the other is the health certificate of the cooking staff, and then ask the health bureau of the industrial and commercial bureau. You'd better ask directly, because the management in different areas here is different, so the answer may not be suitable for you. Young people must act when they think about it. Your idea is very good.