Listen to the whole passage
Listen to the whole passage once first, then practice sentence by sentence.
The first line is the other person opening the conversation; the "You" lines are suggestions for you to practice saying in this scenario (not a back-and-forth dialogue).
A friend answering the phone
你好，你是谁？
Hello, who is this?
You
你好，我是你的朋友。
Hello, it's me, your friend.
You
明天你有时间吗？
Do you have time tomorrow?
You
明天上午你能来吗？
Can you come tomorrow morning?
You
我们几点见？
What time shall we meet?
You
我们在学校见，好吗？
Let's meet at the school, okay?
You
好的，明天见，再见！
Okay, see you tomorrow, goodbye!