Need a formula to compare two columns and return a value of 1

Good Morning,

I need a formula that will compare two different columns and then return a value of one if certain criteria are met. The criteria: Column A will have unique text (Names) that correspond to column B which may or may not have dates. I need to have the formula check to see if all entries in Column A with Matching Names have a date; if they do, it needs to return a 1, if not, then a 0. Example:

Column A:

Blue
Blue
Blue
Red
Red


Column B:

01/01/16
01/01/16
01/01/16
(No date)
01/01/16

The formula would need to produce a 1 for the Blue entry, since all three match and have dates, while returning a 0 for Red, since only one of the matching names has a date for a total of 1 overall. (The "No Date" cell would be empty in my workbook, fyi.)

Please let me know if I need to provide any further details!