C# - Merging These Two Very Similar Methods

I have these two methods on a service:

public Offer GetOffer(int id, string languageCode = Website.LanguageSettings.DefaultLanguageCode)
{
Entities.Offer offerEntity = _db.Offers.FirstOrDefault(offer => offer.Id == id);
if (languageCode.ToLower(CultureInfo.InvariantCulture) != Website.LanguageSettings.DefaultLanguageCode)
{
using (IDocumentSession session = store.OpenSession())
{
Translation.Offer translatedOffer = session.LuceneQuery<Translation.Offer>(Website.RavenDbSettings.Indexes.Offers)
.Where(string.Format("ObjectId:{0} AND LanguageCode:{1}", id, languageCode))
.OrderByDescending(offer => offer.Id)
.FirstOrDefault();
var offerPOCO = Mapper.DynamicMap<Translation.Offer, Offer>(translatedOffer);
offerPOCO.Id = offerEntity.Id;
return offerPOCO;
}
}
return Mapper.Map<Entities.Offer, Offer>(offerEntity);........................................