With rental gear, you take what they've got. But a decent hood is not expensive! Consider getting it online, most starting divers would buy hood, glove, booties, and then just rent the wetsuit if need be.
With your own hood, you take a heated coat hanger wire, melt a small hole at each ear, and two more on the top seam, for "head up" and "face down" to let air out. Your hearing will be much better and you'll have basically no water circulating through and making you colder.
Years ago a dive club buddy asked me why I had holes over my ears, and then could I put holes in her hood. Caused a bit of an upset on the dive boat when someone notice me taking The Big Dive Knife out and attacking her head.(G)
You need to check the fit of the hood versus your mask. If the hood overlaps the mask, you are more likely to get air trapped in the hood. If the hood doesn't quite touch the mask--that's the right fit, and you may need to own & trim your own hood to get it that way.