Section B - Answer all questions (45 marks): Question B.1 Pack-and-Go is a company that operates an online tour reservation system. The company is growing fast. Its management is planning to phase out the old system. They are looking forward to a more efficient system. Our challenge is to design and implement a new system that not only meets the company's immediate needs but also is flexible enough to support other types of products in the future. Below is the description of the main activities that need to be supported by the new system: - The Create Reservation activity starts when a customer selects a tour package. Creating a new reservation involves selecting a tour package and tour date, adding tourists and contact information, and finally accepting payment for the reservation. The website only accepts an online payment that will involve the online payment gateway company. The Maintain Reservation activity starts when a reservation is modified in any way by a customer. It handles all aspects of the reservation modification, and it ends when the customer completes the reservation modification session. The Receipt Issuing activity is started by a clerk whenever a tour completes. It handles all aspects of receipt issuing, including the downloading of digital receipts by the customer. The status of the issuing of receipt for each reservation has to report to the accounting system. The Maintain Relationships activity is started by a customer service clerk, who is a special type of clerk, whenever a relationship with a customer requires special attention. It handles all aspects of Pack-and-Go's relationships with customers, and it ends when a relationship is either created or maintained for a customer. The Decision Support activity is started by a manager whenever a predefined or undefined request for information is made. It handles all aspects of decision support effort, and it ends when a reply is formulated for the inquiry. Draw a Use Case Diagram for the online tour reservation system. (15 marks)