Prince William and Kate Middleton say they have been "incredibly moved" by the affection shown to them since their engagement.In a message in their official wedding programme they thanked "everyone most sincerely for their kindness".Details of Friday's ceremony at Westminster Abbey have been published. The order of service reveals Miss Middleton will vow to "love, comfort, honour and keep" but not obey Prince William.The service will be the epitome of "Britishness", St James's Palace said.Meanwhile, the Foreign Office says the invitation for the Syrian ambassador in London has been withdrawn following reports that up to 400 pro-democracy protesters have been killed in Syria by security forces in recent weeks.A Foreign Office statement said: "Buckingham Palace shares the view of the Foreign Office that it is not considered appropriate for the Syrian ambassador to attend the wedding."Miss Middleton has taken part in her last rehearsal at Westminster Abbey, with best man Prince Harry, the bridesmaids and pageboys.In their official wedding programme released on Thursday, William and Kate's message reads: "We are both so delighted that you are able to join us in celebrating what we hope will be one of the happiest days of our lives."The affection shown to us by so many people during our engagement has been incredibly moving, and has touched us both deeply."We would like to take this opportunity to thank everyone most sincerely for their kindness."Source: BBC