If it's just two lenses, then a standard zoom (24-70 or 24-105, your preference) and a telephoto zoom (70-200) is going to be your best bet. That's especially true since you don't have enough experience to know what you're doing; the versatility of the zoom will probably be a blessing for you.
No matter what you do, it'd be silly to not have the Shorty McForty (or at least the Plastic Fantastic) in your pocket. It's just too good and too small a lens to not have as backup.
If you were going to do a wedding with just two primes, you'd want a 35 and an 85.
More commonly, you'd have one of the holy trinities. 35/50/85 is the classic. 24/50/100 can work well. Some might like 35/85/135.
(Of course, all these focal length suggestions assume full frame. Adjust accordingly for crop.)
However, I wouldn't at all recommend doing a wedding with only primes until after you've done enough weddings with zooms to know what you're doing.
The ideal setup for a novice wedding photographer would be the holy trinity of zooms (either 16-35 or 12-24, depending on availability, plus standard and telephoto) plus a holy trinity of primes (pick any) with two bodies. You'd keep the standard zoom on one body, the telephoto on the other body, and only swap those out with one of the other lenses when you had a specific need to do so. That'll give you enough backup equipment to laugh in the face of disaster; enough options to cover any unexpected situation you might run into; and only be moderately burdensome.
Of course, it'll set you back five figures....