Dulles/Dallas
Was enroute Oz to Washington DC with family back in 69. Had never heard of Dulles.
On the climb out of San Francisco Captain came up on PA to advise pax to settle down for the x hours to Dulles. I heard it as Dallas and exclaimed that we were on the wrong flight.
Feverish pressing of a call button produced a hostie who confirmed we were going to Darlus and not to worry.
Now very worried I told the family that they would be seeing Dallas sooner than expected but now concerned that luggage had gone to Washington.
Careful perusal of a route map eventually created a more relaxed situation much to family's amusement.