Thank you both for taking time to respond.
Helen, yes, it's a one month booking. There are plenty of photos on the listing and the description is complete so I wonder if this is a request for extra reassurance - one month is a long time and the person says she's 24. She wanted to come and visit but airbnb make that difficult - editing out phone numbers and e-mail addresses.
Lawrene, I really appreciate your practical suggestions - they help enormously. That helps me to share information I otherwise couldn't share.