Appointment scheduling services; Advertising, marketing and promotion services; Advertising, promotion, and marketing services in the nature of lead-engagement marketing and conversational commerce delivered through AI-powered conversational agents that provide real-time personalized product recommendations, facilitate purchase transactions, and deliver post-purchase follow-up communications for businesses and individuals; Lead generation services; Marketing services in the nature of lead generation; Confirming scheduled appointments for others; Business consulting, management, and planning services in the field of conversational-AI marketing, customer engagement, conversational commerce strategy, and sales-funnel optimization; Business consulting services in the field of conversational-AI marketing, customer engagement, conversational commerce strategy, and sales-funnel optimization; Advertising, marketing, and promoting the goods and services of others via conversational product demonstrations and guided commerce experiences provided via AI chatbots and voice assistants; Business management of logistics for others by means of arranging and confirming sales calls, product demonstrations, and consultations, and sending automated reminders and follow-up communications; Business management of logistics for others by means of rescheduling appointments, events, and meetings; Business management of logistics for others by means of facilitating purchase transactions, delivering post-purchase follow-up communications, and providing real-time personalized product recommendations all via an AI-powered conversational agent; Providing sales leads for others; Marketing services rendered using artificial intelligence (AI)