Give a data dictionary definition of customer names based on the following verbal specifications from the user:

$$When we record the customer$$s name, we are careful to include a courtesy title. This can be $$Mr$.,$Miss$,$Ms$,$Dr$.$Every one of the customer has a first name but we allow them single initial if they prefer. Of Course, the last name is required, we allow a pretty broad range of last names including that have hyphens $($e$.$g$.$ Smith Frisby$),$ apostrophe $($e$.$g$.$ D$$Acy$)$ and an optional suffix $($e$.$g$.$ Tim smith Junior$).$