FLT ATTENDANT LEFT HER MANUAL ON A PREVIOUS FLT.

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FLT OF ONE LEG FROM MSY TO IAH WITHOUT CREW MEMBER (FLT ATTENDANTS) MANUAL. I WAS FLYING WITH 2 NEW HIRES AS FLT ATTENDANTS; AND WE WERE RUNNING BEHIND ON OUR LIQUOR COUNT SO WHEN WE ARRIVED IN MSY FROM MCO THE GND CREW WERE RUSHING US TO GET OFF THE PLANE; SO WE DID; AND IN THE PROCESS I LEFT MY MANUAL BEHIND. I DIDN'T REALIZE WHAT HAD HAPPENED UNTIL THE NEXT DAY WHEN I WAS SUPPOSED TO FLY AGAIN. AFTER CHKING MY EMER EQUIP I REACHED FOR MY MANUAL. IT WAS THEN THAT I REALIZED THAT I DID NOT HAVE MY MANUAL. I TOLD THE CAPT AND THE FO AND THEY TOLD ME IT WAS A NO GO ITEM. SO WE ALL WENT BACK UP TO THE GATE AND STARTED CALLING THE ADMINISTRATION TO TRY AND GET THE PLANE OFF THE GND. AFTER SPEAKING WITH CREW SCHEDULING I WAS TRANSFERRED MANY TIMES FROM ONE SUPVR TO ANOTHER. FINALLY I WAS TOLD BY SOMEONE THAT I COULD FLY AS LONG AS WE HAD ONE MANUAL ON BOARD; WHICH WE DID. THE CAPT/FO GOT AUTHORIZATION FOR THEMSELVES THROUGH THEIR OWN RESOURCES ALSO UPON ARR IN IAH; I WAS GIVEN MY MANUAL BACK.