As a party planner assistant, your job is to help the primary party planner set up and organize an event. In this role, you may help select and reserve a venue, process details about guests, and otherwise ensure the party meets the expressed desires of your client. Party planner assistants are a specific type of event planner, which is the broader job category under which an employer may advertise these roles. In this context, the name party planner usually refers to celebratory events like birthdays and weddings, usually for larger groups of people. Some details of this job depend on the client. For example, some party planner assistants specialize in birthday parties for children while others focus on celebrations of life that take place after funerals.