Cancelation policy - customers will be able to cancel before booking start time. It will be like :

a)It should be set in hours.

b) Less than 24 - 50% deductions

c) Less than 10 hours - 80% deductions

d) Less than 2 hours - 100% deductions)

e) If used any promo/coupon - No Cancellation allowed.
f) Once a promo code is applied to a booking, the customer will no longer be able to cancel the request.