Dear Kate
I would like to meet you on my brother's wedding party next Monday. The ceremony starts at 11 AM at Hamilton church. My brother asked me to invite you as he will be happy to see you there. We all hope to see you there with your sister and parents. The party starts at 6 PM at "Three oaks" restaraunt and if you have no possibility to come to the ceremony, please, do not hesitate to be there at 6 PM. See you soon.
Best regards