C# - Webservice Remove NameSpace From WebMethod Parameter

I Have Create the webMethod

Service:
[WebMethod]
public void GetCommission(List <BOLibrary.Flight.DTContract>Loc)
{
}

At the client side i am Passing the parameter Client

List<BOLibrary.Flight.DTContract> BoList = new List<BOLibrary.Flight.DTContract>();
BOLibrary.Flight.DTContract dtConboj = new BOLibrary.Flight.DTContract();
dtConboj.ValidatingCarrier = "AA";
BoList.Add(dtConboj);
BOLibrary.Flight.DTContract[] pass = BoList.ToArray();
service.GetCommission(pass);

But the Problem is that the service.GetCommission(pass) accpect the argument of servicenameSpace.DTContract but in client in client i have BOLibrary.Flight.DTContract so how can i pass the parameter to the to the Service.