I have a question about English.?

Hi, it's Jim. I am calling because something unexpected has come up. It is about the luncheon meeting that we organized with Jenny and yourself. Jenny has already secured the potential client, ABC company, and in order to complete the contract, she needs a couple more days before arriving here in New York. Since I have to be abroad from next Tuesday through Thursday, I was wondering how it would sound to you if we changed the date to Friday.