You shouldn't pester someone constantly about doing something for you.
Harry always feels proud when his home and property look their best.
Harry wants his lawn to look freshly mowed when his family visits on the weekend.
Harry tells his neighbor Charlie when he happens to see him, how he appreciates him mowing his lawn before his family comes.
Harry calls his neighbor Charlie every day reminding him that he said he would mow his lawn before the weekend.
Charlie tells Harry that it's no problem, he is happy to help.
Charlie tells Harry that if he doesn't quit calling him every day he won't mow his lawn at all.