Booking Request/Resources Issue

@25

Our company, which is small (@25 users) would like to implement the Booking Request feature. I have done so in our Sandbox environment and the feature itself works great. My question is this: We would like to allow ALL of our users to see everyone's bookings in the booking chart, but only allow certain users (based on role) to be able to make a booking request for someone other than themselves.
In essence a User in the User Role (Limited access) should only be allowed to make a Booking Request for themselves but see everyone's bookings in the chart, but a user, say, in the Project Manager Role should be able to make Booking Requests for themselves and everyone in the User Role and again still see everyone's bookings in the booking chart.