8月份要去韩国打工度假，这间公司因为之前有在那边实习过，所以算是认识
但因为事隔1.2年了，现在要再去工作，想写一封正式的信询问是否有职缺
没有写过这种信件，请英文高手帮忙看一下，有没有需要修改的
感谢^^ (如果有需要修改请帮忙回站内信给我)
Dear Allice,
How have you been recently?
After a few months resting, I will go to Korea for one-year working holiday
next August 24.
Please allow me to ask if there is job opening in xxx(某韩国公司)
for part-time vacancy.
Base on your knowing, I have worked in xxx(我前公司)for almost 4 years
from part-time position to permanent staff. In order to make
you know me more, I gave a summary of my work experience in following section.
As a sale assistant, I was assigned to manager bulk order data with EXCEL,
follow product progress and export distribution. While arranging production
line, I also did some stock control. I obtained 645 points in TOEIC.
I hope these meet xxx's(韩国公司) request. Thank you for your time and I look
forward to your positive reply.