About writing a dialogue between characters, highlighting the personality characteristics of characters, no less than 300 words of composition, please help.

Aunt Zhang was transferred from the countryside last month. Her husband works in the grain depot and found her a job as a salesgirl in the grain depot sales department. But she knew that the sanitation station lacked cleaners, so she volunteered to undertake the work of cleaning the city. At that time, I thought: It's really cheap to do such a dusty and despised inferior job instead of doing a good job!

One morning, I came back from running with some classmates, and we were chatting happily while walking. Suddenly, a cloud of dust flew in front of us, and we quickly covered our noses. I turned my head and saw Aunt Zhang wearing plain work clothes and a white mask, cleaning the road seriously. Shit! What if she recognizes me and greets me? How embarrassing it is to let the students know that I know a street sweeper! But it happened that Aunt Zhang called me "Hengchun". Alas, I will make a fool of myself this time. I simply pretended not to hear, closed my eyes and dragged my classmates across the street. I didn't walk a few steps, like an invisible rope wrapped around me. I wanted to go back and apologize to Aunt Zhang, but I held back and blushed. How rude.

After school at noon, in order not to meet her, I slipped into the house like lightning. Hardly had I put down my schoolbag when I heard a quarrel. I ran to Aunt Zhang's window and saw that it was her daughter's voice. "Dad asked you to be a salesman, but if you don't, why do you want to sweep the street and make us lose face!" Aunt Zhang smiled and said, "What's wrong with being a cleaner? Look at that street. There is rubbish, leaves and flies everywhere. People's health is not guaranteed, and cities are dirty. Can I have a look? " Aunt Zhang's daughter had no choice but to leave in a fit of pique. Aunt Zhang's eyes showed an imperceptible disappointment and injustice, bit her lower lip and went back to the kitchen to cook. Seeing this scene, I began to doubt my opinion.

The next day, I went to school with my schoolbag on my back. I saw Aunt Zhang getting ready to go home. She greeted me as usual. I went up and asked, "Aunt Zhang, why do you have to be a cleaner!" " "She smiled and said," In order to beautify the city, we need cleaners. A person who is useful to society is not afraid of being tired or dirty. " Looking at aunt Zhang, I suddenly woke up ...