public void GroupBookingCommentsAdd(GroupBookingReportModel modelToSave)
        {
            Air_GroupBookingComments datamodel = new Air_GroupBookingComments
            {
                GroupBookingId = (Int64)modelToSave.GroupBookingId,
                Comment        = modelToSave.PostComment,
                isDelete       = modelToSave.isDelete,
                CreatedBy      = modelToSave.CreatedBy,
                CreatedDate    = DateTime.Now
            };

            ent.AddToAir_GroupBookingComments(datamodel);
            ent.SaveChanges();
        }