Ah-Ming (M)：小李，我問你喔，你有兄弟姊妹嗎？
Ah-Ming (M)：Xiǎo lǐ, wǒ wèn nǐ ō, nǐ yǒu xiōngdì zǐmèi ma?
Ah-Ming (M)：Xiao Li, I ask you oh, do you have any siblings?

Xiao Li (L)：我有一個姊姊
Xiao Li (L)：Wǒ yǒu yīgè jiě jie
Xiao Li (L)：I have an older sister.

M：她做什麼工作？
M: Tā zuò shénme gōngzuò?
M: She does what work?

L：她是醫生。你呢？你有兄弟姊妹嗎？

L: Tā shì yīshēng. Nǐ ne? Nǐ yǒu xiōngdì zǐmèi ma?
L: She's a doctor. And you? Do you have any siblings?

M：有，我有一個弟弟，還有一個妹妹
M: Yǒu, wǒ yǒu yīgè dìdì, hái yǒu yīgè mèimei
M: I have, I have a younger brother, I also have a younger sister.

L：那，他們做什麼工作？

L: Nà, tāmen zuò shénme gōngzuò?
L: Then, they do what work?

M：他們沒有在工作，他們還在唸書
M: Tāmen méiyǒu zài gōngzuò, tāmen hái zài niànshū
M: They aren't working, they're still studying.

L：還在唸書？他們幾歲？
L: Hái zài niànshū? Tāmen jǐ suì?
L: Still studying? How old are they?

M：我的弟弟29歲，我的妹妹27.

M: Wǒ de dìdì 29 suì, wǒ de mèimei 27.
M: My younger brother is 29 years old, my younger sister is 27.

L：他們那麼大，還在唸書？
L: Tāmen nàme dà, hái zài niànshū?
L: They're that big, still studying?

M：對啊，這樣不好嗎？

M: Duì a, zhèyàng bù hǎo ma?
M: Yeah, is this way bad?

L：沒有不好啊...
L: Méiyǒu bù hǎo a...
L: Nothing bad ah...

M：唸書很重要啊
M: Niànshū hěn zhòngyào a
M: Studying is really important ah.

L：對啊，對啊，很重要啊
L: Duì a, duì a, hěn zhòngyào a
L: Yeah, yeah, really important ah.

M：對啊

M: Duì a
M: Yeah!

L：對啊

L: Duì a
L: Totally.

M：幹嘛

M: Gàn ma
M: WTF?

L：沒事

L: Méishì
L: Never mind.

M：你很無聊

M: Nǐ hěn wúliáo
M: You're really boring.

A note about pronunciation: The dialogue above includes the pinyin romanization of the text. The advantage of pinyin for English speakers is that it uses the familiar symbols of the Latin alphabet. The disadvantage is that English speakers are easily deceived into thinking these familiar symbols represent the same sounds they do in English. They don't. That said, pinyin can be a useful system to learn, but you must rely on your ears first, eyes second.

Don't expect to be able to pronounce anything just by reading the pinyin; the romanization is just a reference to jog your memory. The language exists primarily in its sounds, which is why daily listening and imitation practice is so important.