求英语好的人帮写一篇英语作文!关于一个朋友邀请我参加他的生日派对,但是由于父亲生病要在家照顾,所以拒绝了,回信中表示歉意

Dear XXX,
Thank you very much for inviting me to your birthday party!
I am deeply longing for having a party with you and other friends,because we have not been together for a long time.However,I have to inform you that due to my father's illness he has to be attended by me at home day and night,so I cannot take part in your party.What a party it is!Had he been better soon,I would like to compensate for you to organize another party.
I have to send my best wishes in this letter with my present together.
Yours ever,
XXX
写得不知道合适不,