听力原文: Friendly Skies flight 58 departing for Honolulu and San Francisco is now ready for boarding. All passengers who have not already done so should proceed through passport control and report immediately to gate 16. Please have your ticket ready to show the gate attendant. Remember, you may have one small carry-on bag only. Passengers with extra baggage will be required to check it with the gate attendant before boarding the plane. Passengers with small children may go to the head of the line. Where is the announcement being heard?