Tā cóng xiǎo de mèngxiǎng jiùshì chéngwéi yī míng kōngzhōng xiǎojiě.
Her dream since childhood was to become a flight attendant.
Tips
usage
空中小姐 is the traditional term, literally 'sky miss.' The more modern and gender-neutral term is 乘务员 (chéngwùyuán), which covers all cabin crew regardless of gender.