Sonja namedropping hotel suites

does anyone remember when Sonja was name dropping hotel suites? I can hear her say “I’ve stayed in the Frank Sinatra room in Chicago”. my friend is staying in one of these suites for her wedding & now I can’t remember which ep it was! I am guessing it’s when they’re in London for yummy™️ but I won’t be able to watch until this evening to confirm. Thanks!