Shuttle-Eze operates airport shuttle vans in twelve large cities. Those cities are Los Angeles, San Diego, San Francisco, Phoenix, Las Vegas, Houston, Dallas, Chicago, New York City, Washington D.C., Miami, and Orlando. Shuttle-Eze operates passenger vans to shuttle travelers to and from the airports for a $25 fee per person.

Required:
a. Design the tables that the company would need in its database to operate these shuttles. Remember that they must collect, record, and track information about customers, payments, flights, gates, vans, drivers, pick up and delivery addresses. There may be other types of data not mentioned in the previous sentence that you would wish to add. The tables you design should have attributes (columns) for each critical piece of data. See Exhibit 13-4 for the concept of the table layouts. The tables you design should meet the first three rules of data normalization.
b. Describe the advantages and disadvantages of using a centralized database for Shuttle-Eze.