Complex sentence: For example, a patron purchases a $20 drink for the hostess, most of the time which are non-alcoholic concoctions like orange juice and ginger ale, and the patron has purchased the hostess's undivided attention for the subsequent 30--45 minutes.
Split into simpler sentences: For example, a patron purchases a $20 drink for the hostess, most of the time these are non-alcoholic concoctions like orange juice and ginger ale. The patron then has purchased the hostess's undivided attention for the subsequent 30--45 minutes.