John Kennedy actually said...

"And as I have said, I think the welcome we got today is in good part due to your efforts--and I know that you will continue them."

"Mr. President, Mrs. Kennedy and I are delighted to be your guests and we are proud to be here among your people."

"And I am also proud to be the first President of the United States to visit this country."

"The people of my country are committed to the progress of your people and this hemisphere."