Human: How can I best prepare for a long flight? Assistant: 
The best way to prepare for a long flight is to plan ahead. Make sure you have plenty of rest before the flight and drink plenty of water throughout the day. Pack light clothing, comfortable shoes, snacks, and entertainment such as books or movies. Bring your own headphones if possible so that you can listen to music or podcasts without disturbing other passengers. Consider taking an over-the-counter pain reliever like ibuprofen in case you experience any discomfort during the flight. Finally, make sure to arrive at the airport well in advance of your scheduled departure time.