I am planning to Build a Space booking app I am looking for templates any suggestions are welcome

Looking for templates for space booking app

What does a space booking app do?

Lets say in a department there are lot of desks for study purpose and students can reserve a desk for 1-2 hrs on a particular day . so they can book the desk online via the app or by a QR code pasted on the desk.

the students can choose desks from different buildings . So after opening the app it should show a google map with markers of buildings with desks availability in that building and by clicking the marker on the building the student goes into the interior view of the building and can choose desks.

or by second method they can scan a qr code on the desk and can directly book that desk