diff --git a/models/workflow/workflow.go b/models/workflow/workflow.go
index 4a72ed5..6b06d78 100644
--- a/models/workflow/workflow.go
+++ b/models/workflow/workflow.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"slices"
+	"strings"
 	"time"
 
 	"cloud.o-forge.io/core/oc-lib/models/resources"
@@ -36,7 +37,7 @@ type Workflow struct {
 	AbstractWorkflow
 }
 
-func (wfa *Workflow) CheckBooking(caller *tools.HTTPCaller) (bool, error) {
+func (wfa *Workflow) CheckBooking(subPath string) (bool, error) {
 	// check if
 	if wfa.Schedule == nil || wfa.Schedule.Start == nil || wfa.Graph == nil {
 		return false, nil
@@ -55,7 +56,10 @@ func (wfa *Workflow) CheckBooking(caller *tools.HTTPCaller) (bool, error) {
 			}
 			// CHECK BOOKING
 			url := dc.(*datacenter.DatacenterResource).SourceUrl
-			resp, err := caller.CallGet(url, caller.OriginSubPath+"/"+wfa.getFormat(wfa.Schedule.Start)+"/"+wfa.getFormat(&e))
+			caller := tools.NewHTTPCaller("", "", "", "")
+			subPath = strings.ReplaceAll(subPath, ":start_date", wfa.getFormat(wfa.Schedule.Start))
+			subPath = strings.ReplaceAll(subPath, ":end_date", wfa.getFormat(&e))
+			resp, err := caller.CallGet(url, subPath)
 			if err != nil {
 				return false, err
 			}