Subhanallah, when we ask for favours from people multiple times, people get fed up with us. But God wants us to ask Him as much as we can. God loves being invoked and being called upon for even our smallest needs.

Prophet Muhammad (peace be upon Him) said: God descends every night to the lowest heaven when one-third of the first part of the night is over and says: I am the Lord; I am the Lord: who is there to supplicate Me so that I answer him? Who is there to beg of Me so that I grant him? Who is there to beg forgiveness from Me so that I forgive him? He continues like this till the day breaks. [Sahih Muslim 758 b]