Dear XX,
I'm really sorry about my absent yesterday,because I need to attend an urgent meeting which is not on my schedule but just happened in a sudden.That's the reason why I'm not home and can't let you come to my home yesterday.
Would you like to come to my house this weekend at 11:00am to have lunch together?I would cook by myself and hope we would have a good time at this weekend.
Really appriciate for your coming!Thanks
Best Regards,
yours XXX