Creating a GUI with API

Our instance has two sites. We often have our build team assigning systems to the incorrect site or not to a site at all. What I would like to do is allow our support staff the ability to pop up a GUI that will ask them for the serial number of the system and have the sites in a drop-down. This way when they identify a system that is incorrect it doesn't get escalated to us and there would no need to expand the number of support staff that have access to Jamf Pro. I would obviously use a token for API access, but I'm wondering if there's a way to accomplish this. I see plenty of community discussions around bulk moves to sites. I would like to be able to do this with a GUI with one-off systems.