Compose the detailed use cases

I am looking for a freelancer to compose detailed use cases for a small, single functionality system. The purpose of the use cases is to describe the system's functionality in a high-level overview. The ideal freelancer for this job should have experience in system analysis and be able to accurately outline user interactions. They should also be able to identify potential errors and exceptions in the system. The use cases should provide a clear understanding of how the system functions and the actions that users can take. The freelancer should be able to provide a high-level overview of the use cases, describing the system's functionality without going into too much detail. Overall, the freelancer should have strong analytical skills and the ability to clearly communicate complex system functionality.

Here is our real product: https://mightyid.ca . There are 6 use cases need to be composed. The work look like this Vietnamese use case in length: https://www.mightyid.ca/channel/654b56759957e3836ca372ed

The successful candidates may need a short training with us on MightyID to understand more about the product.