Update app.py

app.py

@@ -371,7 +371,10 @@ def extract_date_range(query):
         "january": 1, "february": 2, "march": 3, "april": 4, "may": 5, "june": 6,
         "july": 7, "august": 8, "september": 9, "october": 10, "november": 11, "december": 12
     }
-    pattern = r"(?i)from\s+([a-zA-Z]+)\s+(\d{4})\s+(to|until)\s+([a-zA-Z]+)\s+(\d{4})"
+    # pattern = r"(?i)from\s+([a-zA-Z]+)\s+(\d{4})\s+(to|until)\s+([a-zA-Z]+)\s+(\d{4})"
+    pattern = [
+        r"(?i)(from|between)?\s*([a-zA-Z]+)\s+(\d{4})\s*(to|through|and|-)\s*([a-zA-Z]+)\s+(\d{4})",
+    ]
     match = re.search(pattern, query)
     if match:
         start_month_str, start_year = match.group(1).lower(), int(match.group(2))