In a mixing bowl, combine the softened cream cheese, chopped dill, lemon juice, salt, and black pepper. Mix until smooth.

Spread a generous layer of the cream cheese mixture on one side of each slice of bread.

Layer the thin cucumber slices on half of the bread slices, then top with the remaining slices to form sandwiches.

Cut each sandwich into quarters or triangles. Arrange on a serving platter and serve immediately.