Is there a native way to pass locale or culture in a SOAP request?

Question

I have a client application which queries a 3rd party web service. The webservice calls use SOAP which are defined by a WSDL document available on the remote server. I'm using .NET 2.0 to consume the WSDL file and then make my requests via the generated System.Web.Services.Protocols.SoapHttpClientProtocol object.

My question is: Is there some native way of passing my client system's locale/culture to the server when I make requests? Our is there maybe a native way for me to obtain the server's locale/culture?

When I say native, I mean a method that's part of the SOAP standard. I've explored the 3rd party's spec and can't find anything related to locales.

It's worth mentioning that the 3rd party web service is also a Microsoft product running on the .NET platform (SSRS Web Service).

Any info on this topic might help.