If you are having the dinner party with people you know, it shows the great relationships you have built with these people. The dinner party is the pleasant dream that only is the reflection of the happy life you are living.
Dream dictionary: Party(dinner) dream meanings
The dinner party in dreams indicates your desire for company and even relationships, especially if you are enjoying the party. You are the person who likes to talk to others, therefore you dream of communicating and talking and having fun with others.
Transitory pleasure. 220.
…To dream of a hard-boiled plum pudding, or a hard roll of pudding of any kind, is a sign you will be invited to a dinner party; but if you imagine the pudding looks soft and mossy, it fore- tells that you will go to some entertainment where there will be a row. Lucky lottery dream numbers – 19, 70….