If you would like to make any changes to a pending inquiry (any inquiry that hasn't been booked), you should message the owner to let them know of the changes. The owner can then create a new offer for you with the updated details.
If the owner does not take action on your request by creating a new offer, feel free to contact us at email@example.com. We'd be happy to reach out to the owner on your behalf and see if they can accommodate your requested changes.
If you want to make changes to a confirmed booking, see how to do so HERE.