extract information and store as workflow variable

Sharepoint and workflow 2013
I get the following information in a web service
<GetUserLoginFromEmail xmlns="http://schemas.microsoft.com/sharepoint/soap/directory/"><User Login="i:0#.w|instructional inytim01" Email="Tiny.Tim@sccpss.com" DisplayName="Tiny Tim" SiteUser="0" /></GetUserLoginFromEmail>

Question:

1) how can i extract Tiny Tim from the  DisplayName= and store it in a variable?

thanks