diff --git a/auction/models.py b/auction/models.py
index 3b8da57..ebc4438 100644
--- a/auction/models.py
+++ b/auction/models.py
@@ -8,8 +8,8 @@ class Inquiry(models.Model):
     destination_name = models.CharField(max_length=128)
     destination_coords = models.PointField()
     destination_radius = models.IntegerField()
-    arrival_from = models.DateTimeField()
-    departure_until = models.DateTimeField()
+    arrival = models.DateField()
+    min_nights = models.IntegerField(default=0)
     budget = models.DecimalField(max_digits=10, decimal_places=2)
     adults = models.IntegerField()
     children = models.IntegerField()
@@ -35,8 +35,7 @@ class Inquiry(models.Model):
 class Offer(models.Model):
     inquiry = models.ForeignKey(Inquiry, models.PROTECT)
     establishment = models.ForeignKey(Establishment, models.PROTECT)
-    arrival = models.DateTimeField()
-    departure = models.DateTimeField()
+    nights = models.IntegerField()
     comment = models.TextField(null=True, blank=True)
     accepted = models.BooleanField(default=False)
     hidden = models.BooleanField(default=False)
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