def convert_times(times):
    """
    Converts from Google Calendar events to busy times that include only
    start and end date times.
    :param times: is a list of Google Calendar events.
    :return: a list of busy time dicts with start and end date times.
    """
    new_times = []

    for time in times:
        new_times.append({'start': {'dateTime': time['start']['dateTime']},
                          'end': {'dateTime': time['end']['dateTime']}})

    return new_times