What I understand from your post is, you joined this company as Computer Operator. But with the background of MBA HR, you asked for the HR profile for yourself and now handling Ticketing & Transportation responsibilities.
Now ticketing/ transportation (not for logistics, I assume) falls under Administration which is also considered to be under HR facet in most of the companies. Speak with your HR Manager and check with him. Since you don't have HR experience, he might have thought to start with this. BUT IT IS IMPORTANT to check it with him and clear your understanding.
21st June 2017 From India, Pune