this is a document important for the children besides of parents

1. Dear Irving
I write to thank you for the invitation to your birthday party
which I think will be fantastic but unfortunately I can not be.
Unfortunately I will not be able to do, because I have a family
commitment that day which is impossible to attend a birthday
party I hope you understand dear friend. However will reward
you with a day to go for a few beers.
I'm sorry but It was very kind of you to invite me, but will not
attend. Hope you a good time at your party excuse me dear
friend. I hope you understand and againanapology.
Bestwishes
Edgar