Online travel agencies are Internet-based systems that streamline travel arrangements through flight bookings, hotel arrangements, vacation plans, and car rentals under one umbrella. With the help of sophisticated search engines, travelers can access price comparison, customer reviews, and itinerary customization according to their budget and requirements. They collaborate with airlines and hospitality services to offer their customers affordable and discounted rates. Additional features such as instant booking, reliable payment gateways, and round-the-clock customer support add to their convenience. Commonly used keywords in relation to online travel agencies include "budget travel," "convenient travel booking," "discounts," and "travel planning."