partial

@inherits Umbraco.Web.Mvc.UmbracoViewPage<Umbraco.Core.Models.IPublishedContent>

 <p>@Umbraco.GetDictionaryValue("Værelse")</p>
 

Surfacecontroller

    public class BookingController : SurfaceController
    {
      
        public ActionResult GetRoomMarkup(int id)
        {
            
            return PartialView("booking-rooms", Umbraco.TypedContent(id));
        }

      
    }

My solution ended up being like this :
View:

@Url.Action("GetRoomMarkup", "Booking", new { id = CurrentPage.Id, lang= Model.Content.GetCulture() })

Surfacecontroller Inheriter:

 public class AjaxSurfaceController : SurfaceController
    {
        protected void SetCultureForAjax(string lang)
        {
            //Get the culture info of the language code
            CultureInfo culture = CultureInfo.CreateSpecificCulture(lang);
            Thread.CurrentThread.CurrentCulture = culture;
            Thread.CurrentThread.CurrentUICulture = culture;
        }
    }

Surfacecontroller that inherites:

 public class BookingController : AjaxSurfaceController
    {

        public ActionResult GetRoomMarkup(int id, string lang)
        {
            if (ControllerContext.HttpContext.Request.IsAjaxRequest())
            {
                SetCultureForAjax(lang);
            }
            return PartialView("booking-rooms", Umbraco.TypedContent(id));
        }

    }