Looking for kind and capable helper

We are a family of 4. (2 adults and 2 boys, 6 year old and 9 year old). Chinese. Our house is 3 storey, 4 beds and 5 bathrooms, small garden. No other helper. I am looking for a helper who must be kind, positive, mature and easy going. She also needs to be capable to work for big house and can multitask. She must be nice and patient with kids, preferably having kids herself. She must be good at cooking with attention to details. Her English must be very fluent. She is ok to travel to China in summer and winter time. I cannot guarantee every Sunday because if my husband travel and I need helper on Sunday. Thank you.