A travel itinerary system solves the problem of disorganization and uncertainty that can arise when planning a trip. It provides a centralized platform for travelers to organize and manage their travel plans, including flights, accommodations, activities, and reservations. With a travel itinerary system, travelers can easily access all of their trip details in one place, stay on top of their schedule, and make changes or adjustments as needed. This can help reduce stress, save time, and ensure a smoother, more enjoyable travel experience.