These are the only 2 lines, audition may be final, or I may ask you to tweak your inflection.

Line 1) He has just launched from the ship after the captain sends the crew to battle stations (not under attack yet, just a precautionary order). He sounds calm and collected

Line 2) He is flying next to the Constellation...still nothing solid on the scanners...but suddenly there's a heatplume...and a sudden realization of what caused it before his craft is destroyed by the incoming fire