How to restrict zoho account users to complete a form based on choosing another users name in a drop down list

Hello,

Thanks for the help in advance. Currently, any user that logs in my Form can choose any user from the drop down field to enter data to complate the form. Is there a way where if Zoho user account A logins in the application and not be able to choose user B, C, but only can choose A.

Also, would like user A not be edit current rows for user B of C in my view.

Thanksssss