Primefaces confirmDialog doesn't show up after one call - jsf-2

Question

I have a problem with PrimeFaces <p:confirmDialog>, when I click on the <p:commandLink> that must show up the dialog and choose 'No', everything is fine. But when I click on yes,everything works just the first time.
When the process is over and I click again on any <p:commandLink>, the dialog doesn't show up unless I refresh the whole page.I had try everything but I cannot figure out what can be the problem.
<h:form>
<p:dataTable border="0" rules="all" value="#{userBean.users}" var="user" autoUpdate="true" styleClass="table table-hover" paginator="true" paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}" rowsPerPageTemplate="6,10,15" >
<p:column>
<f:facet name="header">
<h:outputText value="Login" />
</f:facet>
<h:outputText value="#{user.login}" />
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="" />
</f:facet>
<p:commandLink class="badge bg-red marge-left" onclick='PF("cdu#{user.id}").show()' title="Supprimer un utilisateur"><span class="fa fa-trash-o"/></p:commandLink>
<p:confirmDialog ajax="true" message="Voulez vous vraiment supprimer l'utilisateur '#{user.login}'" closable="true" header="Confirmation" severity="alert" widgetVar="cdu#{user.id}" >
<p:commandButton value="oui" actionListener="#{userBean.deleteUser}" update="#form" onclick='PF("cdu#{user.id}").hide()' styleClass="btn btn-primary"/>
<p:commandButton value="non" onclick='PF("cdu#{user.id}").hide()' type="button" styleClass="btn btn-danger" />
</p:confirmDialog>
</p:column>
</p:dataTable>
</h:form>

Answer 1

I had finally resolved my problem. I changed the <p:confirmDialog> by a global one and it works.
<h:form>
<p:dataTable border="0" rules="all" value="#{userBean.users}" var="user" autoUpdate="true" styleClass="table table-hover">
<p:column>
<f:facet name="header">
<h:outputText value="Login" />
</f:facet>
<h:outputText value="#{user.login}" />
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="Nom" />
</f:facet>
<h:outputText value="#{user.firstName} #{user.lastName}" />
</p:column>
<p:column style="width:200px;">
<f:facet name="header">
<h:outputText value="Email" />
</f:facet>
<h:outputText value="#{user.email}" />
</p:column>
<p:column >
<f:facet name="header">
<h:outputText value="" />
</f:facet>
<p:commandLink class="badge bg-blue marge-left" action="#{userBean.getUserRowToEdit}" title="Editer un utilisateur" ><span class="fa fa-edit"/></p:commandLink>
<p:commandLink class="glyphicon glyphicon-trash icon-trash" actionListener="#{userBean.deleteUser}" title="Supprimer un utilisateur" update="#form">
<p:confirm header="Confirmation" message="Voulez-vous vraiment supprimer l'utilisateur?" icon="ui-icon-alert"/>
</p:commandLink>
</p:column>
</p:dataTable>
<p:confirmDialog global="true">
<p:commandButton value="Yes" type="button" styleClass="ui-confirmdialog-yes" icon="ui-icon-check"/>
<p:commandButton value="No" type="button" styleClass="ui-confirmdialog-no" icon="ui-icon-close"/>
</p:confirmDialog>
</h:form>

Answer 2

I tried your code and repaired it a little. Hope it will work for you too.
-I removed ajax="true"
-usersBean.deleteUser function need to know which user to so -> deleteusersBean.deleteUser(user)
Under is my code that i use to test your case. A few things are changed due to existing beans i have. This code is tested on latest primefaces(5.2).
my xhtml file:
<p:column>
<f:facet name="header">
<h:outputText value="" />
</f:facet>
<p:commandLink class="badge bg-red marge-left" value="delete" onclick='PF("cdu#{user.userId}").show()' title="Supprimer un utilisateur"><span class="fa fa-trash-o"/></p:commandLink>
<p:confirmDialog message="Voulez vous vraiment supprimer l'utilisateur '#{user.name}'" closable="true" header="Confirmation" severity="alert" widgetVar="cdu#{user.userId}" >
<p:commandButton value="oui" actionListener="#{loginBean.deleteUser(user)}" update="#form" onclick='PF("cdu#{user.userId}").hide()' styleClass="btn btn-primary"/>
<p:commandButton value="non" onclick='PF("cdu#{user.userId}").hide()' type="button" styleClass="btn btn-danger" />
</p:confirmDialog>
</p:column>
</p:dataTable>
</h:form>
my loginBean:
public class LoginBean implements Serializable {
private static final long serialVersionUID = 6188046073588310656L;
private List<User> users= new ArrayList<User>();
public LoginBean() {
}
public List<User> getUsers() {
if(users.size()==0){
for (int i= 0; i<3; i++){
User u = new User();
u.setUserId(i);
u.setName("noob"+i);
users.add(u);
}
}
return users;
}
public void deleteUser(User user){
users.remove(user);
}
}