Finn: Doesn't Artoo back up your memory?
C-3PO: Oh, please. Artoo's storage units are famously unreliable.
Rey: You know the odds better than any of us. Do we have a choice?
C-3PO: If this mission fails... it was all for nothing. All we've done... all this time.
Poe Dameron: What are you doing there, Threepio?
C-3PO: Taking one last look, sir... at my friends.
Zorii Bliss: Babu only works with the crew. That's not you anymore.
Rey: What crew?
Zorii Bliss: Oh, funny he never mentioned it. Your friend's old job was running spice.
Finn: You were a spice runner?
Poe Dameron: You were a stormtrooper?
Rey: Were you a spice runner?
Poe Dameron: Were you a scavenger? We could do this all night.
Finn: Where's the wayfinder?
C-3PO: I am afraid I cannot tell you.
Poe Dameron: 20.3 fazillion languages, you can't read that?
C-3PO: Oh, I have read it, sir. I know exactly where the wayfinder is. Unfortunately, it is written in the runic language of the Sith.
Rey: So what?
C-3PO: My programming forbids me from translating it.
Poe Dameron: So, you're telling us the one time we need you to talk, you can't?
C-3PO: Irony, sir. I am mechanically incapable of speaking translations from Sith.