diff --git a/camisatoshi_wordpress_reports/cli.py b/camisatoshi_wordpress_reports/cli.py
index 9cc7eb5..85a63eb 100644
--- a/camisatoshi_wordpress_reports/cli.py
+++ b/camisatoshi_wordpress_reports/cli.py
@@ -1,5 +1,9 @@
+import datetime
+
 import typer
 
+from typing_extensions import Annotated
+
 import camisatoshi_wordpress_reports.controllers as controllers
 
 app = typer.Typer()
@@ -11,6 +15,8 @@ def check_health():
 
 
 @app.command()
-def generate_um_report(start_date: str, end_date: str):
+def generate_um_report(
+    start_date: Annotated[datetime.datetime, typer.Option(prompt=True)],
+    end_date: Annotated[datetime.datetime, typer.Option(prompt=True)],
+):
     controllers.generate_um_report(start_date, end_date)
-
diff --git a/camisatoshi_wordpress_reports/controllers.py b/camisatoshi_wordpress_reports/controllers.py
index 2eb690a..54ffe14 100644
--- a/camisatoshi_wordpress_reports/controllers.py
+++ b/camisatoshi_wordpress_reports/controllers.py
@@ -40,17 +40,14 @@ def check_health():
     logger.info("Connection successful. The API is reachable.")
 
 
-def generate_um_report(start_date: str, end_date: str):
-    start_date = datetime.datetime.strptime(start_date, "%Y-%m-%d").isoformat()
-    end_date = datetime.datetime.strptime(end_date, "%Y-%m-%d").isoformat()
-
+def generate_um_report(start_date: datetime.datetime, end_date: datetime.datetime) -> None:
     logger.info(f"Fetching orders between {start_date} and {end_date}.")
 
     orders_in_date_range = WC_API.get(
         endpoint="orders",
         params={
-            "after": start_date,
-            "before": end_date,
+            "after": start_date.isoformat(),
+            "before": end_date.isoformat(),
             "per_page": 100,
             "status": "processing,completed",
         },