Meta's Chief AI Officer Alexandr Wang offered a light-hearted apology on X after joking with a tech executive who used the company's autonomous AI assistant, Muse, to book a flight. The exchange began when Webflow CTO Utkarsh Sengar shared on X that he had booked plane tickets via Muse, writing, "Just booked plane tickets via Muse. Never going back." Wang replied with a playful suggestion that Sengar should also book a return flight and eventually head home, adding that it was just a dumb joke. Sengar appeared to take the comment in good humour, responding with a laughing emoji. The interaction comes as Meta has stepped up its push for Muse, its newly launched personal AI agent designed to handle real-world, multi-step tasks on behalf of users, such as booking travel, sending emails and listing a car for sale. Meta has positioned Muse as part of CEO Mark Zuckerberg's broader vision of delivering what he calls "personal superintelligence." The product will be available only in the US initially, via a dedicated Muse app or Meta's WhatsApp messaging service. According to Meta, Muse can turn longer-term goals into action plans and carry out tasks in the background, connecting with apps and services including email, calendars, payments, health, shopping and smart-home platforms, with users deciding which apps Muse can access and able to revoke those permissions at any time.