How to notify the owner of the lost mobile phone?

Write a search notice. I want to inform you that a owner accidentally lost his mobile phone. If anyone finds it, please contact the property management company and remind everyone to take good care of their belongings to avoid unnecessary trouble. The owner lost his mobile phone and sent a notice to write a notice to find something. The notice of finding things refers to the applied style that a unit or individual hopes others to help him find things after losing them.