It’s easy to ask people for a favor. People do it all the time. The thing people have to remember is while a favor might seem to be “free” there is almost always a cost involved. The cost might be the persons time, their contacts, or their money but somehow or other there is a cost involved.
It’s so much easier if you first develop a relationship with the person. Just because you know someone doesn’t mean you have developed a relationship. When people see you helping others, you making a difference, it’s a lot easier for them to want to help you.
Give before you take and people will be more than willing to help you as well
Have a great day!