Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_60718 ( "Greek Designation" text, "Collegiate Institution" text, "Charter Date" text, "Status" text, "City" text, "U.S. State/District" text )

### Question ###
What's the greek designation of the new york chapter with a charter date of april 23, 2005?

### Accurate SQL ###

SELECT "Greek Designation" FROM table_60718 WHERE "U.S. State/District" = 'new york' AND "Charter Date" = 'april 23, 2005'