1. Before replying, make sure that you have understood the specific situation and relevant details of the complaint against the violation of the school canteen staff.

2. In the reply, I would like to express my gratitude to the hotline 12345, and thank you for your concern and support for the problem of the school cafeteria.

3. explain in detail the handling of complaints by the school, including the measures taken and the results of handling.

4. Express the school's attention to restaurant management and concern for students' health, and promise to strengthen the management and supervision of restaurants to ensure that similar problems will not happen again.