Design a high-impact, visually engaging social media graphic to promote a hassle-free booking service for affordable air tickets. The headline "Hassle-Free Booking" should appear prominently in a bold, modern sans-serif font at the upper section of the canvas, drawing immediate attention. Below the headline, include a lively CTA button labeled "Call Now" in an eye-catching color such as vibrant yellow or red, with rounded edges and a subtle drop shadow to enhance its accessibility and prompt action. For the background, use a blend of cool blues and whites, evoking a clear sky to convey ease and openness. Overlay this with faint, illustrative travel elements, such as streamlined line art of airplanes, globes, boarding passes, and check marks symbolizing convenience and reliability. Arrange these elements in a way that subtly frames the main text without overpowering it, maintaining a clean and professional look. Place a central illustration of a friendly airline representative or a cheerful traveler with a suitcase, embodying the ease and peace of mind associated with hassle-free booking. In the lower half, use a set of small, minimalistic icons representing popular travel destinations to inspire viewers to envision their next trip. Opt for high contrast in color choice—pair the calming blue background with bright white, bold yellow, and rich navy elements to ensure readability and visual balance. Add a slight gradient to the CTA button or background to give it depth and a modern aesthetic while maintaining overall simplicity. The final composition should be vibrant, professional, and welcoming, capturing the essence of effortless booking and travel excitement. Aim for a high contrast, clean look that instantly resonates with viewers seeking a convenient and affordable way to book flights.