Possible Clues:

• Cry upon arrival of the mothership
• 'My package has arrived!'
• 'The package that I ordered just arrived!'
• Mailbox checker's excited cry
• Sign at a store with a hard-to-find item
• 'Just arrived!'
• "I found what you're looking for!"
• 'I found what you're searching for!'
• "My package has arrived!"
• Delivery announcement