diff --git a/models/workflow/workflow_mongo_accessor.go b/models/workflow/workflow_mongo_accessor.go
index ccfa868..5d35d91 100644
--- a/models/workflow/workflow_mongo_accessor.go
+++ b/models/workflow/workflow_mongo_accessor.go
@@ -3,7 +3,6 @@ package oclib
 import (
 	"errors"
 	"strings"
-	"time"
 
 	"cloud.o-forge.io/core/oc-lib/dbs"
 	"cloud.o-forge.io/core/oc-lib/dbs/mongo"
@@ -12,7 +11,6 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/workflow_execution"
 	"cloud.o-forge.io/core/oc-lib/models/workspace"
 	cron "github.com/robfig/cron/v3"
-	"go.mongodb.org/mongo-driver/bson/primitive"
 )
 
 type workflowMongoAccessor struct {
@@ -23,21 +21,6 @@ func New() *workflowMongoAccessor {
 	return &workflowMongoAccessor{}
 }
 
-func (wfa *workflowMongoAccessor) CheckBooking(start *time.Time) bool {
-	accessor := (&workflow_execution.WorkflowExecution{}).GetAccessor()
-	s := start.Add(time.Duration(-10) * time.Second)
-	e := start.Add(time.Duration(10) * time.Second)
-	sd := primitive.NewDateTimeFromTime(s)
-	ed := primitive.NewDateTimeFromTime(e)
-	f := dbs.Filters{
-		And: map[string][]dbs.Filter{
-			"execution_date": {{Operator: "gte", Value: sd}, {Operator: "lte", Value: ed}},
-		},
-	}
-	arr, _, _ := accessor.Search(&f, "")
-	return len(arr) == 0
-}
-
 func (wfa *workflowMongoAccessor) getExecutions(id string, data *Workflow) ([]*workflow_execution.WorkflowExecution, error) {
 	workflows_execution := []*workflow_execution.WorkflowExecution{}
 	if data.Schedule != nil {
@@ -104,7 +87,7 @@ func (wfa *workflowMongoAccessor) execution(id string, realData *Workflow, delet
 	if r.Schedule.Start == realData.Schedule.Start && r.Schedule.End == realData.Schedule.End && r.Schedule.Cron == realData.Schedule.Cron {
 		return 200, nil
 	}
-	if !wfa.CheckBooking(realData.Schedule.Start) {
+	if !realData.CheckBooking(realData.Schedule.Start) {
 		return 409, errors.New("the booking is already taken.")
 	}
 	if delete {