Can I offer coupons or discounts?

Sorry, we don't currently offer a coupon or discount feature.   It's possible to add a "promotion code" field to the booking form (under Setup > Booking Details) so clients can enter a keyword to help you track marketing initiatives, but it doesn't automatically apply a discount.   There are some workarounds you might consider. For example, some businesses create a service named "New Client Special" with a lower price.