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Simplify how customers schedule and manage appointments. Microsoft Bookings is an online and mobile app for small businesses that provide services to customers on an appointment basis. Examples of such businesses include hair salons, dental offices, spas, law firms, financial services providers, consultants, and auto shops.

Snippet from Wikipedia: Microsoft Bookings

Microsoft Bookings is a scheduling tool and is part of the Microsoft Office family of products. Generally released by Microsoft in March 2017, Bookings allows customers of small businesses and companies to book appointments with the company. The application is available to Business Premium subscribers to Office 365 and although offered as part of the suite of Microsoft services, has no facility to integrate with Microsoft's flagship Teams meeting tool to create an online meeting (although this feature is promised)