Manage Rental Device in a Team (Channel)

Hello,

I am new in MS Teams. I want to have a Team with a Channel with about 5 users. 
I want to manage a Rental Device in this Channel, where everyone of the 5 users can book the Rental Device for certain days.

What is the easiest/simpliest way to achive this?

I tried with a channel calender, but this is not available on the mobile device...

Br,

Johannes