A friend asks you to introduce them to someone you know professionally. You want to be helpful, but you do not know whether the contact is available or interested. Sending both people a message immediately would make that decision for them.
Ask the friend for a brief explanation of what they want to discuss. Pass that explanation to the contact privately and ask whether an introduction would be welcome. Avoid promising the friend a meeting before the contact answers.
Keep the offer within what you know
If the contact agrees, introduce the two people with the relevant context and let them arrange the next step. You do not need to manage the conversation unless you have separately offered to do so.
If the contact declines or does not reply, tell your friend the introduction is not available. There may be a public route they can use instead. Share it if you know one, without implying that your name guarantees a response or that the contact owes either of you their time.
