Do you struggle to get people to do something that you have asked?
Maybe it is the way that you are asking. Since childhood we have fought against being told what to do, remember being asked "You can tidy your room".
So change your approach for more success....ask the person "May I ask you to help me with something?" It is very difficult to turn down that kind of request.
Once the person has allowed you to explain....you are then able to sell the idea, and remember sell it by explaining why it is important, and most importantly what is in it for them!