Please choose the correct ending to complete the given sentence: Health: [header] How to survive a long flight when you have your period [title] Consider booking an aisle seat. [step] If it is possible, book a seat that is on the aisle. You will likely want to get up every hour or two to visit the restroom, and if you are sitting in the aisle, you won't have to bother any other passengers in order to do so.

Ending1: [substeps] If you aren't able to get an aisle seat, try not to worry. Yes, you will have to ask your neighbor every time you want to get up, and yes, they might get mildly annoyed. Ending2: [title] Learn to use the restroom before the flight. [step] Read the airline's instructions and get to know the little bathrooms in main aisles. Ending3: [title] Make sure your aisle seat is clearly marked using your all-star name. [step] The very important thing you will know about your seat is whether or not you have to write it down on your ticket. Ending4: If you can't find a seat at the front of the plane, you will likely need to find seats on the left side. You can book a seat in the aisle if you are able to or would like to.

Answer format: ending1/ending2/ending3/ending4