plot on primary &secondary y axis for corresponding x axis values

i hvae 2 sheets base and open...both have dates n prices ...with some dates being common....i m trying to plot both on same chart both get plotted on same x value even though the dates differ...like in sheet base has the date starts from 20-2-2001, but in sheet open the data starts from date 01-02-2001....and when plotting both start from same point....what i want it the values of sheet data get plotted only from 20-01-2002 n not from start...i m attaching the sheet fo better clarity incase i sound jumbled up n m not clear
chartin2.xlsx