Knowledge based system answers

The three parts of a knowledge based system include:

•          Collecting information from the user. (knowledge based)
•          Returning  applicable information. (inference engine)
•         Checking to see if the result is acceptable.  
•      Stores data.(raw based)

For a doctor’s office help desk:

Information would be collected about the patient’s condition. The system would suggest a possible answer then check with the patient whether their results are legible or applicable to their situation.

A help desk could also use a knowledge based system to simply check appointments by having the user input their name or other patient information then receive an appointment time or doctor's information.