Let me get this straight. The person has no money, no credit cards and no cell phone. The American Embassy is of no help. May I ask how the message was sent?
This is a common scam aimed at senior citizens and we've gotten a few of these. The scammer pretends to be a grandchild who is stuck in dire straits oversees and requires immediate money to get out of the fix.
It is to laugh because we have no children, let alone grandchildren.