The word reschedules is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 19
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (43 words)
cheered, cheesed, cheeses, crushed, crushes, curdles, decrees, duchess, duelers, eldress, eluders, herdess, hueless, hurdles, lechers, leeched, leecher, leeches, lurched, lurches, recedes, recluse, recused, recuses, reduces, reheels, rescued, rescues, reseeds, screeds, seceder, secedes, seclude, secured, secures, seducer, seduces, seeders, sheered, slushed, slusher, ulcered, ushered