By adding a dream assignment in your profile you will notify your interest of the assignment you´re really interest of and get a higher change to get this assignment booked for you.
When you get a high match of an assignment and also have this assignment as your "Dream assignment", the administrator will be able to read about your dream assignment when hovering over the number of your matching skills in the matching view.
This way the administrator will notice you and you will get a higher change to get the assignment booked for you.
How do I get a high match?
If the administrator is looking for a consultant in January with the skill/competence "Java" and with the level 3 and you are available in January and have the skill "Java" with level 3 in your profile you will get a high match.