I apologize for not being able to invite you to share dinner together because you have other work arrangements. You must come to our factory next time you have time to invite you to dinner.
Because you have other work arrangements, I apologize for not inviting you to share dinner. Next time, I must come to our factory and invite you to dinne
I apologize for not being able to invite you to dinner with me because of other work arrangements. Please come to our factory next time and invite you to dinner.