Waiting area?
'waiting area?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for restaurant that I've seen before include "table here?" , "Eating place" , "Eatery" .)
(Other definitions for lobby that I've seen before include "Entrance room" , "Foyer" , "Seek to influence (a legislator)" , "Attempt to influence" , "Group seeking influence" .)