Xiaoyu is trying to find a time to see Zhang laoshi. They compare their classes and settle on four o'clock the next day.
Xiaoyu
张老师，我想找您问几个问题。
Zhāng lǎoshī, wǒ xiǎng zhǎo nín wèn jǐ gè wèntí.
Zhang laoshi, I would like to come and ask you a few questions.
Zhang laoshi
好。你什么时候有时间？
Hǎo. Nǐ shénme shíhou yǒu shíjiān ?
Gladly. When are you free?
Xiaoyu
明天上午可以吗？
Míngtiān shàngwǔ kěyǐ ma ?
Would tomorrow morning do?
Zhang laoshi
明天上午我有课。下午三点怎么样？
Míngtiān shàngwǔ wǒ yǒu kè. Xiàwǔ sān diǎn zěnmeyàng ?
I have a class tomorrow morning. How about three in the afternoon?
Xiaoyu
三点我也有课，四点行吗？
Sān diǎn wǒ yě yǒu kè, sì diǎn xíng ma ?
I have a class at three too. Would four work?
Zhang laoshi
行。四点，在我的办公室。
Xíng. Sì diǎn, zài wǒ de bàngōngshì.
Four works. Four o'clock, in my office.
Xiaoyu
您的办公室在几楼？
Nín de bàngōngshì zài jǐ lóu ?
Which floor is your office on?
Zhang laoshi
二楼，二零五。
Èr lóu, èr líng wǔ.
Second floor, room 205.
Xiaoyu
好的，明天下午四点见。
Hǎo de, míngtiān xiàwǔ sì diǎn jiàn.
Very good, see you at four tomorrow afternoon.
Zhang laoshi
如果有事，给我打电话。
Rúguǒ yǒu shì, gěi wǒ dǎ diànhuà.
If anything comes up, give me a ring.
下午三点怎么样 leaves the other person free to say no, where 下午三点吧 would have decided for them. The phrase always comes at the end of the sentence, after what you are proposing. It also asks for an opinion: 这个菜怎么样, how is this dish?
Both agree, and they are not said by the same mouths. 可以 is neutral and correct anywhere. 行 is spoken, short, and sounds like "that works". Its negative is 不行, a flat refusal, firmer than 不可以. Note that the same character is read *háng* when it means a trade or a bank, 银行.
四点见, 明天见, 下次见: the time, then 见. It is the normal way of parting once the next meeting is fixed, and it does the work of goodbye. 回头见 says "see you later" without saying when.
