Cygnet XIV

From Memory Alpha, the free Star Trek reference.

Cygnet XIV is the fourteenth planet in the Cygnet system. In 2267, it was inhabited by a female-dominated civilization, and had facilities for general repair and maintenance. The USS Enterprise took advantage of these, and during the repair, the Cygnet people discovered that the ship's computer lacked a personality, so they gave it a female personality that was over-affectionate and had an "unfortunate tendency to giggle". (TOS: "Tomorrow is Yesterday")

Since Kirk states in his log that he was on his way to Starbase 9 for re-supply, it is possible this world is not qualified to re-supply a Constitution-class starship.