Alexa for Hospitality is designed to bring Amazon’s voice assistant technology to everything from chain hotels to vacation rentals.

The system can be customized to include key guest information, like checkout time or pool hours; allows guests to request services like housekeeping or room service; and can be configured to control “smart” hotel room functions, like adjusting the thermostat or raising the blinds.

Marriott is Amazon’s launch partner on the new platform, which is notable not only for the potential scale of this rollout, but also because the hotelier had been testing both Siri and Alexa devices ahead of today’s news.

According to Amazon, Marriott International will introduce the new Alexa experience at select properties in Marriott Hotels, Westin Hotels & Resorts, St. Regis Hotels & Resorts, Aloft Hotels, and Autograph Collection Hotels starting this summer.