@Michelle2941 I hope you're well!
New hosts often find it is safest to start out hosting shorter stays when they are first getting up and running, much easier to iron out the kinks and get some good reviews in.
A month long stay for your first reservation with a guest who is brand new to airbnb and with no reviews could be a big risk, and you should think carefully before accepting.
The first thing to do should be to work out if you're comfortable hosting for that length of time, and then communicate with the guest to find out as much info as you can- it won't be provided by Airbnb as the guest has just created their profile. Guests who are local to your listing/area are sometimes a red flag- but not always.
Sometimes guests think they can take advantage of new hosts and it's easy to understand why, when you're just getting set up and understanding how the platform and short term rentals work.