Angel Second Class.
5 seconds sound clip from the It's a Wonderful Life (1946) movie soundboard.
You can hear this line at 01:41:27 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, I know all about you. I've watched you grow up from a little boy.
- What are you, a mind reader or something?
- Clarence Oddbody, AS2. Oddbody? AS2? What's that, AS2?
- Oh, brother. Gee whiz. I wonder what Martini put in those drinks.
- Hey, what's with you? What did you say just a minute ago?
- That's what I was sent down for. I'm your guardian angel.
[...]