老师，谢谢您这两年的照顾。

Lǎoshī, xièxie nín zhè liǎng nián de zhàogù.

Teacher, thank you for taking care of me these past two years.

多亏了你的提醒，不然我就迟到了，真是太谢谢你了。

Duōkuī le nǐ de tíxǐng, bùrán wǒ jiù chídào le, zhēnshi tài xièxie nǐ le.

Thanks to your reminder, otherwise I would have been late; I really appreciate it.

不客气，不用谢。

Bú kèqi, búyòng xiè.

You’re welcome, no need to thank me.