instruction:
Given a travel related situation, and given a specific question about the situation, summarize the question into a title
question:
I think it's better if I tell a short example:

I plan on going from country A to country B, and I find out that it is cheaper if I pass by country X.
However, the flights from A to X and then from X to B have to be booked separately with unrelated airlines 1 and 2.

Is it usually possible to ask airline 1 to automatically transfer my luggage on arrival to city X, to the plane managed by airline 2?

Or do I have to grab my luggage myself and go through customs and airport-security?

answer:
Luggage transfer between unrelated airlines


question:
I wil be flying with United Airlines (basic economy) to the US. The fight consists of two parts: One trans-Atlantic international flight, and one (US) domestic flight, all on the same United Airlines ticket. 

Now, the carry-on baggage rules here state that "Most travelers can bring on board one full-sized carry-on bag plus one personal item free of charge. If you have purchased Basic Economy for a trans-Atlantic flight, you'll still be allowed both carry-on items. For all other Basic Economy tickets, you will only be allowed one personal item". Does the restiction to one personal item apply in my case? Or does it not apply as one part of the flight is an trans-Atlantic one?

answer:
Carry-on baggage restrictions for United Airlines?


question:
Since I don't have any priority, I avoid using priority seats* on busses, trains etc. However I see that other people who have no priority are occasionally using those seats. I wonder if there is a general code or etiquette for it.

Should I continue to avoid using priority seats even if they are vacant?

* Some seats may be for disabled people.

answer:

Can I use a priority seat if it is vacant?