** Shares of WH Smith SMWH.L down 15.7% at 530p, top loser across LSE
** Co expects FY headline profit before tax of 90 mln -105 million pounds ($121.45 -141.69 million) below prior expectations of 100 million pounds to 115 million pounds
** Flags the Middle East conflict's impact on passenger numbers
** Co suspends dividend to reduce debt and strengthen balance sheet
** Stock has fallen about 17.1%YTD
($1 = 0.7411 pounds)
(Reporting by Judes Joseph in Bengaluru)
((judes.joseph@thomsonreuters.com;))