Add oncall display name when sending option to page the oncall

src/dispatch/case/flows.py

@@ -294,7 +294,19 @@ def case_new_create_flow(
     elif case.event:
         # no one has been paged, inform the channel that they can
         # engage the oncall if the priority changes
-        send_event_paging_message(case, db_session)
+        oncall_name = "the relevant team"
+
+        try:
+            if case.case_type and case.case_type.oncall_service:
+                oncall_service = service_service.get_by_external_id(
+                    db_session=db_session,
+                    external_id=case.case_type.oncall_service.external_id,
+                )
+                oncall_name = oncall_service.name
+        except Exception as e:
+            log.error(f"Failed to get oncall service: {e}. Falling back to default oncall_name string.")
+
+        send_event_paging_message(case, db_session, oncall_name)
 
     if case and case.case_type.auto_close:
         # we transition the case to the closed state if its case type has auto close enabled

src/dispatch/case/messaging.py

@@ -377,7 +377,7 @@ def send_case_welcome_participant_message(
     log.debug(f"Welcome ephemeral message sent to {participant_email}.")
 
 
-def send_event_paging_message(case: Case, db_session: Session):
+def send_event_paging_message(case: Case, db_session: Session, oncall_name: str) -> None:
     """
     Sends a message to the case conversation channel to notify the reporter that they can engage
     with oncall if they need immediate assistance.
@@ -400,7 +400,7 @@ def send_event_paging_message(case: Case, db_session: Session):
             "type": "section",
             "text": {
                 "type": "mrkdwn",
-                "text": f"This event was reported and the team will respond during normal business hours. If you end up needing immediate assistance, you can engage the oncall with `{engage_oncall_command}`.",
+                "text": f"This event was reported and the team will respond during normal business hours. If you end up needing immediate assistance, you can engage `{oncall_name}` with `{engage_oncall_command}` and selecting the 'Page' option.",
             },
         },
     ]