WAC and in fact all female uniforms are more collectable than mens equivalent items. War period uniform would probably go for about $200. Like anything else it depends on who sees it. I'm assuming dress is a skirt, (waist down), & waistcoat is a fitted "Ike"like jacket. The jacket has rank but no other insignia, and the overcoat has a belt?
Nobody has mentioned value except me. Don't know if that is because nobody else has an opinion, or if I'm on the money. With the further info I'd adjust my numbers to $200 plus. You can always check the auction sites.
FWIW, I collect uniforms, and have a couple of women's uniforms in my collection. With no insignia other than rank and an SSI I'd put the value at closer $100. At least, based on what we're told about it, $100 would be the most I would pay. Photos would certainly help more, though.
Some basics about uniform collecting though... Korean War era uniforms, male or female, just don't bring as much as WWI and WII era uniforms. Vietnam era bring even less unless it's something gee-whiz like theater-made tiger stripes, USAF party suits, etc... The same with insignia versus no/minimal insignia, ID'd versus un-ID'd/anonymous uniforms. Minimal/no insignia and an un-ID'd uniform are not terribly desirable (nor valuable) except to fill a particular hole.
Other factors that determine value include things like condition and size as well as the style of insignia. As others have pointed out, larger sizes are more desireable than the smaller sizes. Mothing detracts from value as do rips/tears, stains, non-period repairs, etc... If there's a fruit salad, is it the common "I was there" variety (WWII victory/AME/ATO/PTO stuff) or a more desirable "I was there" variety such as China Service, or is it the medals of valor (PH, Bronze Star, etc...) that make up the fruit salad? Is there's insignia, is it pinback or clutch back?
Otherwise, it's a generic women's uiform with no insignia and is worth a minimal amount to a collector.