sales booth vs booth

sales booth and booth both are nouns.

Word	Noun	Adjective	Verb	Adverb
sales booth	Yes	No	No	No
booth	Yes	No	No	No

As nouns, booth is a hypernym of sales booth; that is, booth is a word with a broader meaning than sales booth:

sales booth (noun)	booth (noun)
a booth where articles are displayed for sale	small area set off by walls for special use
	a small shop at a fair; for selling goods or entertainment
	a table (in a restaurant or bar) surrounded by two high-backed benches