Titanium SOAP Call ActionNotSupported using suds.js

Question

I have http://192.168.15.45:8081/Taqeem.CRM.Appointments.Service.svc?wsdl service and method BookAppointment and I have also mentioned the parameters in the code and it is values.

var url = "http://192.168.15.45:8081/Taqeem.CRM.Appointments.Service.svc?wsdl";
var callparams = {
    AppointmentNumber: 'APP-00000003-H042S5',
    UserId: '4'
};

var suds = new SudsClient({
    endpoint: url,
    targetNamespace: 'http://tempuri.org'
});

try {
    suds.invoke('BookAppointment', {}, function(xmlDoc) {
        var ManifestXML = this.responseText;
        console.log(ManifestXML);
        var results = xmlDoc.documentElement.getElementsByTagName('ResultCode').text;
        console.log('result'+ results);
        if (results && results.length>0) {
            var result = results.item(0);
            label.text = '1 Euro buys you ' + results.item(0).text + ' U.S. Dollars.';
        } else {
            label.text = 'Oops, could not determine result of SOAP call.';
        }
    });
} catch(e) {
    Ti.API.error('Error: ' + e);
}

I've used the suds.js and when I execute the below code. I get the error as ActionNotSupport

Complete response:

[INFO] :   <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Body>
    <s:Fault>
    <faultcode xmlns:a="http://schemas.microsoft.com/ws/2005/05/addressing/none">
    a:ActionNotSupported
    </faultcode>
    <faultstring xml:lang="en-US">
    The message with Action 'http://tempuri.org/BookAppointment' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver.  Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).
    </faultstring>
    </s:Fault>
    </s:Body>
    </s:Envelope>

I feel like I'm passing the wrong TargetNameSpace but I have checked in http://192.168.15.45:8081/Taqeem.CRM.Appointments.Service.svc?wsdl and its good. I request to check the above link for list of methods.

I've used the SOAP UI and it is executing perfect. I get the perfect response.