Burger King has introduced an AI chatbot known as “Patty” into its operations, reported NBC News. The AI voice headset is powered by an OpenAI-based model, allowing Patty to “live inside employees’ headsets to collect data on ‘friendliness’ and simplify workflow,” according to the report.

The voice-enabled headset is currently being piloted in 500 Burger King locations.

The bot is reportedly part of a new web and app platform, BK Assistant, that is designed to provide training and operational support to workers. NBC News reported that the platform is meant to help with tasks such as alerting managers to items that are no longer available or helping workers remember the ingredients in limited-time offers. The system will also analyze conversations between employees and customers at the drive-thru window.

Burger King told NBC News that BK Assistant won’t listen to all employees’ conversations and that the goal isn’t about “scoring” people or encouraging workers to stick to scripts. Instead, the QSR said the assistant begins listening from the moment customers pull up to place their orders until the point when their cars drive away.

“The system will gather data points from employees’ interactions with customers, using, for example, keywords like ‘welcome,’ ‘please’ and ‘thank you,’ which the company said it explored as a signal to help managers understand service patterns,” NBC reported.

“One of the ways that we started this was, you know, picking certain keywords ... but it’s one mechanism that was used to iterate on how to define friendliness,” Thibault Roux, Burger King’s chief digital officer, said in an interview. “It’s really a coaching tool, right? To help you as an employee become more hospitable, and we’re going to help you also with certain operation flaws that may occur that can be a little bit complex.”

Both the web and app versions of BK Assistant are expected to be available to Burger King restaurants in the U.S. by the end of the year.

Last month, foot traffic research firm Placer.ai reported that Yum! Brands’ recently expanded AI-enabled tools have likely played a “supporting role in several operational areas” and contributed to growth.