Well you tell him, YOU'RE the one with the username that reads 'genius'.

"I'm afraid I cannot make contact with Earth at this point in time, no matter the protocol."

His head can reach maybe Cybertron's moon. Maybe. But he doesn't want to just leave the answer at that for the little girl. He owed her to at least try.

Thankfully, she was taking this rather well. Almost...too well.

"Are your parents here?"

That's right. Children have parental figures.