This rate is quite low due to limited information about Wenzhen Ni's experience, skills, and industry demand. Typically, customer service and event planning professionals in the US can charge between $25-$50 per hour, depending on their level of experience and location. However, without more information about Wenzhen Ni's specific qualifications and the level of demand in her location, it's difficult to estimate a more accurate rate. For example, according to Indeed, customer service representatives in Union City, NJ can charge an average of $30-$40 per hour. Event planning professionals in the same location can charge between $40-$75 per hour. Given the limited information, I've estimated a rate of $25 per hour, but this should be taken as a rough estimate rather than a definitive value.