Australian family looking for helper

We are a family of 5 — we have 3 children/teenagers. The youngest just turned 12 (boy), the middle is a teenager who is 14 (girl)and the eldest is 16 years old (boy), as well as a Golden Retriever that might come over soon. We have just moved over to Hong Kong and we are now settling in. The schedule could be quite busy and us parents will travel a fare bit for work. Things like cooking, cleaning are expected. The kids normally would just have Spaggetti bolengese for dinner and the boys would have cultets something as a side with it