import re
pattern = r"\bInfo:\s*(.*?)\.(?:Call|Avbl)\b"
print(re.search(pattern, "Info:Somestring-103409115825.Call").group(1))
print(re.search(pattern, "Info: BIL*ONL*00003.Avbl").group(1))
aW1wb3J0IHJlCiAKcGF0dGVybiA9IHIiXGJJbmZvOlxzKiguKj8pXC4oPzpDYWxsfEF2YmwpXGIiCiAKcHJpbnQocmUuc2VhcmNoKHBhdHRlcm4sICJJbmZvOlNvbWVzdHJpbmctMTAzNDA5MTE1ODI1LkNhbGwiKS5ncm91cCgxKSkKcHJpbnQocmUuc2VhcmNoKHBhdHRlcm4sICJJbmZvOiBCSUwqT05MKjAwMDAzLkF2YmwiKS5ncm91cCgxKSkK