"I'd like to have your item"
Email back - "Yes, that's fine. When can you come round?"
A few days later "Free, Tuesday, Where do you live?"
"Tuesday's fine. This is my address. In in the evening"
Did I get a reply? No. Is she coming? No idea.
How hard is it to say - "See you then" Or "That's good" or to simply acknowledge that you will come round.