Havaii

An elderly Jewish couple was on their way to a long awaited vacation in Hawaii.  On the plane, they got into a heated debate about... the correct pronunciation of Hawaii.
 
You see, he was sure it was "Havaii" with a V, but she maintained that it was "Hawaii" with a W.
 
As soon as they landed they approached the first person they saw.  "Would you mind telling us the name of this island?" they asked.
 
"Havaii!" the man replied.
 
"Thanks," answered the man.
 
"You're Velcome," came the reply.