(Strip Number 661, Original Publication Date, 21 July 1984)
Panel 1: Now that Michael has arrived in Vancouver, Vicky the flight attendant reminds him that he's almost at the end of his journey.
Panel 2: She then asks if he wants to say goodbye to her now, or when they get off the plane.
Panel 3: Michael says that he'd like to do that after they get off the plane.
Panel 4: He then thought-bubbles that that's because goodbyes are easier when they are mixed with hellos.
Summary: He's not wrong. I know how big a problem he has saying goodbye to people at this stage of his life and can relate to his attempts to blunt the hurt.