I'm right with you, Red Three.
4 seconds sound clip from the Star Wars: Episode IV - A New Hope (1977) movie soundboard.
You can hear this line at 01:47:16 in the Blu-ray version of the movie.
Quote context
[...]
- We'll have to destroy them ship to ship.
- Get the crews to their fighters.
- Watch yourself. There's a lot of fire coming from the right side of that deflection tower.
- I'm going in. Cover me, Porkins.
- I'm right with you, Red Three.
- Eject.
[...]