I am new to London (from NY). My uncle and aunt are visiting this week (from Sydney, Australia). They visit London at least once every couple of years and particularly asked me to book Rules Restaurant http://www.rules.co.uk/ for the three of us. Unfortunately, Rules does not have a table in prime dinner time. Does anyone have other suggestions for a restaurant with similar pricing and ambience (and that I might be able to book at late notice of dinner this week)?