BEIRUT (Reuters) - Lebanon s Saad al-Hariri said on Wednesday he would hold off presenting his resignation as prime minister in response to a request from President Michel Aoun to allow more dialogue.  I presented today my resignation to President Aoun and he urged me to wait before offering it and to hold onto it for more dialogue about its reasons and political background, and I showed responsiveness,  Hariri said in a televised statement. 