I'm a computer science student and I work part-time at a local software company. Before even applying for this job, I was already in the process of applying for a summer internship at a major software company. I'm now down to the last interview and they're paying to fly me to their headquarters. I have a tentative date for this now and it conflicts with my work schedule.
Now I'm thinking that I could either tell my manager that I have the interview or make something up. In general, I think honesty is important, but my instinct is to lie here. The company's pretty paranoid about their IP. I have no intention to steal anything from them and the other company isn't even close to being a competitor (although they're so big, they would work on very similar things in some divisions).
Should I be honest about going to the interview or make something up?