Translation of callous in German

I entered yet another suite. This one had a living room, a kitchen, two bathrooms and a huge sleeping room. The view was excellent, overlooking one of Saigon's largest and most impressive boulevards.
Hi! Thank you for your invitation and for your very kind messages. I'm sorry but it is very late here and I prefer to write you tomorrow. When is the best time to chat? See you later than.
We than found out that a plane was leaving 3 hours later to the city of Calama (with the national airline), which was the closest airport to our destination. However, only one seat was available. That was really annoying.