• All of these three projects are related to travelling. • While working on these projects you will be the probabilistic model of: 1) The Head of the travel agency 2) A tour operator 3) A traveller. • You will need to put some realistic information in your projects, for example in you plan your journey in Spain, you will have to check the ticket prices, accommodation prices and so on. You can put some screenshots or links about that prices. • For more details, please read the full descriptions of the projects.