Lucy的连衣裙小了,妈妈想给她买一件新的,请写一段Lucy和妈妈在商店买裙子的对话吧.要求：语句通顺,语法正确,不少于40个单词.我是第一次写英语作文,请快点回答.

lucy:mum,look!look!what a pretty skirt?may i have a new one?
mum:well,whichone do you like?
lucy:that blue one.that's my favour color.i have a pair of blue shoes,they look so match.
mum:yes,sweetie.but,don't you think it looks too short?
lucy:no,i don't think so.it's not as tiny as my old skirt.
小朋友,以后多看看英语绘本吧!好看还能学点知识.