[Ciao,Mark.
How are you? I called you yesterday and left a message. Did you get it?
I wanted to let you know that I'm arriving on the 25th and leaving on the 27th.
I'll try to call you again later to let you know about my itinerary.
I'm really looking forward to this.]
[Dear Andrea.
I'm sorry but Mark's no loger with us. He was in a car accident.He passed away last week.
I'm Jeff. I was his friend. I've been checking his e-mails and writing people back.
I wasn't aware that someone was coming to see him. Ihope that there's still time for you to change your travel plans.
I apologize for the inconvenience.]