answer: #Person2# tells #Person1# how to control the seat and reduce the pressure on the ears.
documents: #Person1#: Hello, miss. Where is the button that controls my seat?
  #Person2#: It's on the arm rest.
  #Person1#: Oh, I see. By the way, what shall I do if changes in altitude create pressure on the ears?
  #Person2#: You can suck a candy or pinch your nose gently while breathing out. That shall help.