Two days ago I sent a cold email to an alumni who is an MD at a boutique to request an informational interview on the phone next week. Within 1 hour he replied and suggested to have a coffee chat near his office next week. He also gave me his phone # and asked me to leave a message regarding the time and days that work for me.
I called him and left a voice mail regarding the time, in case it didn't get through, I also replied to his email with the time. Two days have passed and I haven't heard back from him. So when should I follow-up?
I hesitate because if I follow-up tomorrow (Friday) it might seem that I'm too desperate but if I follow-up next Monday to finalize the time of next week for a busy MD, is that way too rude?
Also, should I follow-up by calling him again to leave a voice mail (since he gave me his phone # and asked me to leave a message) or just sending him another email?
Hope to get some advice from you guy, thanks in advance!