sound calm and stressed alittle
"Borrowed it, Professor Dumbledore, sit, Young Sirius Black lent it to
me. I've got him, sir." 

sound confident but sad 
"No, sir -- house was almost destroyed, but I got him out all right
before the Muggles started swarmin' around. He fell asleep as we was
flyin' over Bristol."

sound sad
"Could I -- could I say good-bye to him, sir?"