def __init__(self, *args, **kwargs):
        super(AppointmentForm, self).__init__(*args, **kwargs)
        self.fields['full_name']=forms.CharField(max_length=50)
        self.fields['phone_number']=PhoneNumberField(widget=forms.TextInput())
        self.fields['email']=forms.EmailField(required=False)
        self.order_fields(['full_name', 'phone_number', 'email', 'date', 'request'])

        # Set label
        self.fields['full_name'].label = "Tên đầy đủ"
        self.fields['phone_number'].label = "Số điện thoại"
        self.fields['email'].label = "Địa chỉ email"
        self.fields['date'].label = "Thời gian khám"
        self.fields['request'].label = "Nội dung khám"

        # widget
        self.fields['date'].widget = DatePickerInput(
           options={
                     "format": "MM/DD/YYYY HH:mm:ss",
                     "showClose": True,
                     "showClear": True,
                     "showTodayButton": True,
                     "stepping": 30
           }
        )