我需要给一个老外发一封邮件,想表达下面这个意思,请英文高手帮忙翻译,非常感谢!

Dear XXX,
Sorry to get back you so late,Jim was just arranged to Xi'an for business trip with one of company's clients,this is a sudden decision of the company,so he has to cancel his plan of backing Kunshan next week.and his next back to Kunshan will be around June 19th,however he'll contact me if come back earlier.
Jim is very very interested in this position 'couse he'd like to find a job that he can do not far from home.
Hope you can understand,thanks and have a great day!
Warmest regards,
XXXX