A nulliparous woman in spontaneous labor was examined by you at 2pm and was found to be 6 cm dilated, 80% effaced with absent membranes, clear liquor and fully effaced cervix and vertex at 0 station and oxytocin was started to augment the contractions. At 6pm, she is reassessed and found to have same findings, but now with a caput formation and grade 3 moulding. Her contractions were seen to have been adequate for the last 4 hrs. What is the next step?