SELECT T1.booking_status_code FROM apartment_bookings AS T1 JOIN apartments AS T2 ON T1.apt_id = T2.apt_id WHERE T2.apt_number = "Suite 634"
Tell me the booking status code for the apartment with number 'Suite 634'.
CREATE TABLE apartment_facilities (
    apt_id number,
    facility_code text
)

CREATE TABLE apartment_buildings (
    building_id number,
    building_short_name text,
    building_full_name text,
    building_description text,
    building_address text,
    building_manager text,
    building_phone text
)

CREATE TABLE apartments (
    apt_id number,
    building_id number,
    apt_type_code text,
    apt_number text,
    bathroom_count number,
    bedroom_count number,
    room_count text
)

CREATE TABLE apartment_bookings (
    apt_booking_id number,
    apt_id number,
    guest_id number,
    booking_status_code text,
    booking_start_date time,
    booking_end_date time
)

CREATE TABLE view_unit_status (
    apt_id number,
    apt_booking_id number,
    status_date time,
    available_yn others
)

CREATE TABLE guests (
    guest_id number,
    gender_code text,
    guest_first_name text,
    guest_last_name text,
    date_of_birth time
)