Answer:
If you can get this professional's attention you can get where you need to go for a price.
What does someone else have to take before you can get?
If you are unsure how to use one then just ask a flight attendant.
Old Mcdonald had this
If you need a night out, call one of these over to take the little ones off your hands for a while.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?