The best intros are those where both parties opt in to the intro so you're not wasting either person's time. --- Before doing an introduction, you should ask both sides if they actually want one.  You should set context and provide someone with an "out" in case they are not interested or able to make the connection (e.g. if they have a conflict of interest, a lack of relevance, or the like).  This sets you up better for the future - if you tell someone you really need them to talk with one of your contacts, they will believe you and make the time. - Elad Gil in https://blog.eladgil.com/p/ask-before-you-intro