In-flight free service.

Long-distance flights during the journey have free services beyond what we know about in-flight service. Because services are not necessarily advertised by airlines, they must be requested directly.

In-flight refill.

Sometimes possible.
That is, it is not possible on all flights. There are passengers who prefer to skip late night in-flight meals and just sleep.
Of course, once the in-flight meal has been distributed to other passengers, they can receive it only for the rest of the year.

A first-aid kit.

They have bandages, bandages, and sanitary supplies for small emergencies on airplanes, so they are provided when requested.
But since flight attendants are legally prohibited from giving passengers fever repellents, painkillers, anti-inflammatory medicines, be sure to take the medicine yourself.

Cockpit call.

The law forbids passengers to enter the cockpit. So let's not have big expectations.
But for children, a cockpit visit would be a great opportunity to learn how the plane was moving.
If the landing is on time, let's ask the child a little while all the passengers are off.

In-flight snack.

Be careful to ask the flight attendants to get snacks such as nuts and pretzels. They will bring it to you when the beverage service is finished.

Night kit.

If you put on your shoes on the plane for a long time, your feet will swell. But you don't want to be barefoot, so ask for socks. Some airlines also offer slippers.
There are also blinders and ear plugs for people who do not want to be disturbed in their sleep.

Washable tools.

Disposable toothbrushes and toothpastes are provided to help the passengers get fresh out.

Babysitter service.

If you are traveling with a baby alone, you may want to stretch for a while and go to the bathroom. When a flight attendant is requested to do so, she sometimes takes care of the baby for a while.