Thomas Waggoner, an information systems professor at the local university, is at the Will Call window at the Medallion Theatre, trying to pick up tickets he had reserved. However, due to an oversight which turns out to be rather frequent, his tickets were sold to another patron. Fortunately for Dr. Waggoner and his wife, who are celebrating their wedding anniversary, the box office manager finds two box seats which had not been claimed. In talking with the box office manager, Dr. Waggoner starts thinking that he could perhaps help the theatre avoid this type of problem in the future. His students could design and build a system to help keep track of ticket sales, and hopefully help the theatre become more efficient and improve customer satisfaction.

Draw a Use Case Diagram for the proposed system in the case above, showing extend and include relationships