用英语写一封派对或其他活动的请柬,回复你同伴,如果你拒绝邀请,给出一个好的理由

Dear Marry,
Thank you for your warm invitation for the New Year party.I have been looking forward to this event for a long time.However,I must apologize that because of a family situation,I will have to be away from our city for a few days when you host the party.I trust the party will be a great one with lots of fun and joy.
I hope all of you have a good time.
Best wishes and Happy New Year,
Yours,
Cai Li