Obi-Wan Kenobi. I wonder if he means old Ben Kenobi.
5 seconds sound clip from the Star Wars: Episode IV - A New Hope (1977) movie soundboard.
You can hear this line at 00:22:13 in the Blu-ray version of the movie.
Quote context
[...]
- It's all right. You can trust him. He's our new master.
- Quite frankly, sir, I don't know what he's talking about.
- Our last master was Captain Antilles.
- But with all we've been through, this little R2 unit has become a bit eccentric.
- Obi-Wan Kenobi. I wonder if he means old Ben Kenobi.
- I beg your pardon, sir, but do you know what he's talking about?
- I don't know any Obi-Wan, but old Ben lives out beyond the Dune Sea.
- He's kind of a strange old hermit.
[...]