I would research the hotel on internet, get some idea of layout and suitable backdrops. A list is handy but even more useful is an usher who knows everyone. Delegate. I found 14-54 for interior shots best and zoom for outside images isolating guests for impromp portraits. Get some images mothers/parents with children if there are any. Smile, try and build rapport with group. Enjoy!

Some advice from another site on flash settings. I have used the settings on my E1 FL50 and it works just fine.

FL36/50

David