(Strip Number 210, Original Publication Date, 6 January 1982)
Panel 1: As our story continues, we find ourselves on an Air Canada jet heading to the Caribbean. Elly hugs John and says "Two weeks in Barbados! I can hardly wait!!"
Panel 2: She wonders out loud what the hotel is like and wants to go shopping.
Panel 3: She also wants to tour the island and see the museum; she also sets up the punchline by asking John what he wants to do first.
Panel 4: Since John is already asleep and snoring, we can guess what that thing is: he wants to spend the next two weeks on the beach asleep.
Summary: It's funny because they have different expectations and can't see that what the other person wants matters. Oh, wait; that's not funny at all.