Price line name ur price for a flight?

i jokenly put in 5$ for a price it came back and said yes..so for 2 people round trip 4 nights from mn to reno...$102 which includes tax and fees.has anyone ever done this..what kind of flight will it be will we be on a cargo plane.lolwill i get my tickets it says its electronic tickets ..whats that..ty for any answers