@Dan11927 Since he's 'requested to book', you normally need to accept or decline within 24 hours, but instead just ask him to withdraw his request for now, until you've had a chance to review further, since the request is for a month, which he already knows he doesn't want, and his request is blocking your calendar and is requiring action of some sort.
Since you're new to hosting, I'll ask, have you checked him out at all, to have a fair idea who this person is and be fairly sure you want to host him? What's on his profile...reviews from other hosts...is he 'verified', I.D uploaded, etc? Look him up online to see what comes up. Beyond that, you might start with a 5 day booking and go week to week from there. That way it isn't getting complicated further with the 7 day discount you offer, should he cancel midway through a week. He then also isn't filling your calendar for large blocks at a time, with uncertainty. But further to that, I see you have activated the 'new host' 20% off discount. Be aware that can be combined with your weekly and monthly discounts. Someone could end up staying for practically free. You might want to remove all of the discounts for now, until you get your hosting feet under you. Your price already seems pretty good to me. Let's see what advice other hosts have for you. There are a lot of experienced, clever folks on this forum.