I followed this link to auto complete.
I am missing bunch of employee as I type. for example, I have a butler, jonathan but he is not showing up.
Turns out rowLimit is case sensitive. and it's working now
var soapEnv = "<soapenv:Envelope xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/'><soapenv:Body> <GetListItems xmlns='http://schemas.microsoft.com/sharepoint/soap/'><listName>Employees List</listName><viewFields><ViewFields><FieldRef Name='EmployeeName' /> </ViewFields></viewFields> <rowLimit>30000</rowLimit> </GetListItems> </soapenv:Body> </soapenv:Envelope>"; <rowLimit>30000</rowLimit>