I need Two (2) Use Case Diagrams for this client and staff module

Client Module: - This module will allow the Administrator role to manage clients within the system which includes adding, updating, deleting and viewing clients at the list and individual levels - The Client ID will also be required by the Work Item and Invoice modules [hint - this suggests a number of relationships] - See Database Schema above for required fields Staff Member Module - This module will allow the Administrator role to manage staff within the system which includes adding, updating, deleting and viewing staff members at the list and individual levels - The Staff ID will also be required by the Work Item module [hint - this suggests a relationship] - See Database Schema above for required fields