Assess the level of sadness present in the following tweet: "@DeltaAssist Tried 2 get earlier flt 2day  @BWI Turnd away bcuz it was 2 late Then agent let other pas on #silvereliteleftbehind #unhappy". Provide a real number between 0 and 1, with 0 representing the least intensity and 1 representing the highest intensity.
0.667