The Apollo 8 crew and Mission Control medical personnel held a conference using an unoccupied second-floor control room (there were two identical control rooms in Houston, on the second and third floors, only one of which was used during a mission).
ðɪ ɐpˈɑːloʊ ˈeɪt kɹˈuː ænd mˈɪʃən kəntɹˈoʊl mˈɛdɪkəl pˌɜːsənˈɛl hˈɛld ɐ kˈɑːnfɹəns jˈuːzɪŋ ɐn ʌnˈɑːkjʊpˌaɪd sˈɛkəndflˈoːɹ kəntɹˈoʊl ɹˈuːm ðɛɹwˌɜː tˈuː aɪdˈɛntɪkəl kəntɹˈoʊl ɹˈuːmz ɪn hjˈuːstən, ɔnðə sˈɛkənd ænd θˈɜːd flˈoːɹz, ˈoʊnli wˈʌn ʌvwˈɪtʃ wʌz jˈuːzd dˈʊɹɹɪŋ ɐ mˈɪʃən.