human
What should I do to prepare for a long flight?
assistant
1.  Make sure you have plenty of water and snacks with you, as well as comfortable clothing and shoes.
2.  Try to get some sleep the night before your flight, if possible.
3.  Arrive at the airport early so that you can check in and go through security more quickly.
4.  Consider bringing entertainment such as books, magazines or games to keep yourself entertained during the flight.