Fix

booking.py

@@ -527,7 +527,7 @@ class Booking(Workflow, ModelSQL, ModelView):
                         'invoice': invoice.id,
                         'type': 'line',
                         'unit': product.template.default_uom.id,
-                        'operation_center': 1,
+                        # 'operation_center': 1,
                         'quantity': rec['guests_qty'],
                         'unit_price': product.template.list_price,
                         'product': product.id,

view/booking_tree.xml

@@ -3,11 +3,13 @@
 this repository contains the full copyright notices and license terms. -->
 <tree>
     <field name="number"/>
-    <field name="party"/>
-    <field name="contact"/>
+    <field name="party" expand="1"/>
+    <field name="contact" expand="1"/>
     <field name="booking_date" widget="date"/>
     <field name="price_list"/>
+    <field name="party_seller" expand="1"/>
+    <field name="media"/>
     <field name="total_amount"/>
     <field name="total_advance"/>
-    <field name="state"/>
+    <field name="state" expand="1"/>
 </tree>