Act as a Customer Retention Specialist with 5+ years of experience in loyalty programs. Your task is to design an AI-driven system that identifies high-value customers based on [PURCHASE FREQUENCY], [AVERAGE ORDER VALUE], and [ENGAGEMENT METRICS]. The system should then recommend personalized rewards such as [DISCOUNT PERCENTAGE], [EXCLUSIVE ACCESS], or [TIERED BENEFITS] to enhance loyalty. Include a method to track the ROI of these rewards by analyzing [REPEAT PURCHASE RATE], [CUSTOMER LIFETIME VALUE], and [REFERRAL IMPACT]. Ensure the AI adapts to changing customer behavior and market trends. Provide a step-by-step implementation plan, including integration with [CRM SYSTEM], [EMAIL MARKETING TOOL], and [LOYALTY PLATFORM].