I applied to a position and I was scheduled to conduct a phone interview with two individuals - the manager and someone who works for the manager. But when I received the call, the individual who works for the manager told me that the manager had to take an unexpected phone call and that he would be conducting the phone interview.
I have started to prepare my "thank you" letter. I will be sending it to the person who I spoke with and the assistant to the manager who set up the interview. But I don't know if I should also send a "thank you" letter to the manager for preparing to speak with me, although he could not.
So I was wondering: Should I send a "thank you" email to the hiring manager for considering to speak with me? Or is there some thing else that I could/should do to show my gratitude?