@Lindsay423
A:
You can rate the listing price based for 1 person.
Then add a fee for additional guest(s).
How-do-i-add-a-fee-for-additional-guests-to-my-listing
pLease note : discounts set (like weekly) are not applied on the additional guest fees.
B:
Provide a discount manually after reservation is confirmed (use "change" option on the reservation and amend price in the change form)
C:
Sent guest a special offer (if an inquiry is received, otherwise first ask guest to retract the booking request)