The waiting as the symbol in dreams could be interpreted as the negative and positive omens, depending on the circumstances of your waking life. Try to figure out how you were feeling in a dream as it would give much more information about the meaning of the dream. If you felt positively in a dream, then it means that you are dedicated to some work you are doing or to the partner you are in relationships with. If you felt negatively in a dream while waiting, then it symbolizes your fear of unknowingness.
Read more about dreaming of Waiting in other dream meanings interpretations.