As a business owner, imagine that I’m just doing a research, I don’t know exact dates of my holiday (it mostly depends on your availability) and I’m not sure how long I want to stay. I need to find out the options, consider them and talk with my partner. If we would talk on the phone, you would give me dates but what’s next? I would hang up anyway to think about these dates. And that’s not closing a deal. That’s inconvenience for me, because I need to write them down anyway.