Is there any airline that has the adult assistance program, Other then Northwest airlines?

sunnydays: Is there any airline that has the adult assistance program, Other then Northwest airlines?
also, any information on if O’hara out of chicago has a airline that has the adult assistance program.
This qustion is more for a adult with cognitive disabilites. He can not be left alone.

Answers and Views:

Answer by telewheelsmike
All major airlines will provide assistance, but you need to notify them in advance of what assistance that you need .. i.e. wheelchair, in-airport transportation, assistance with boarding, etc.