Fasting so that one's dua will be answered
Q: The Prophet (Sallallahu Alayhi Wasallam) said that the dua of a fasting person is answered. It's borne on the clouds and the gates of heaven are opened for it, and Allah (Ta'ala) says "By my glory, I will grant you help even if it may be after sometime". Can I fast with the intention that my dua will be answered, or is that disliked? Any help will be greatly appreciated.