Want to have a login on my events submission page and a means to logout

On my events submission page it is necessary for me to have a means for people to login and then logout when completing their submission information. What is the best way to do this?

On the page where the submission event form code is or should I be doing this in another way?

Please advise and explain how I need to accomplish this? Such as for example do I place a shortcode on my events submission page or another means and how and where to do this??

Hope your day finds you well!

Thank you
Doug