changes to suggestions made by shivam
diff --git a/erpnext/crm/doctype/appointment/appointment.py b/erpnext/crm/doctype/appointment/appointment.py
index 9e051f6..5ca124b 100644
--- a/erpnext/crm/doctype/appointment/appointment.py
+++ b/erpnext/crm/doctype/appointment/appointment.py
@@ -42,8 +42,9 @@
             # Set status to unverified
             self.status = 'Unverified'
             # Send email to confirm
+            self.send_confirmation_email()
 
-    def send_confirmation_email()
+    def send_confirmation_email(self):
         verify_url = self._get_verify_url()
         template = 'confirm_appointment'
         args = {
diff --git a/erpnext/crm/doctype/appointment_booking_settings/appointment_booking_settings.py b/erpnext/crm/doctype/appointment_booking_settings/appointment_booking_settings.py
index bb45b72..b8028e3 100644
--- a/erpnext/crm/doctype/appointment_booking_settings/appointment_booking_settings.py
+++ b/erpnext/crm/doctype/appointment_booking_settings/appointment_booking_settings.py
@@ -28,7 +28,7 @@
 
     def validate_from_and_to_time(self, from_time, to_time):
         if from_time > to_time:
-            err_msg = _(''<b>From Time</b> cannot be later than <b>To Time</b> for {0}'').format(record.day_of_week)
+            err_msg = _('<b>From Time</b> cannot be later than <b>To Time</b> for {0}').format(record.day_of_week)
             frappe.throw(_(err_msg))
 
     def duration_is_divisible(self, from_time, to_time):