Hi Paula, thank you for reaching out!
My name is Rolyn, an Independent Advisor and a Microsoft Excel User like you. I would love to help you out with your concern.
This could be possible through Bookings app, though it seems it's only available to Office 365 for Education A3 and A5.
For more information on Bookings on Teams, you can refer here: https://support.microsoft.com/en-us/office/over...
If you wish to support for this feature to be added in A1 as well, you can vote for this suggestion here: https://office365.uservoice.com/forums/600793-o...
Feel free to ask me if you need further assistance.
Thanks,
Rolyn