To quote on a Bark you've already responded to make sure you are in the 'My Responses' tab. From here, select the conversation you'd like to add a quote on and click 'view.'
On the top right of the screen, you'll now see an option to 'Provide an estimate'. Clicking this will bring up an option to provide a quote for this potential customer.
You'll then be asked to let the buyer know your quote along with the frequency of the payment (monthly, one off, per visit etc) and any additional details that you think the buyer might find helpful - you can then click "Send Estimate."
Once the quote is sent it will then appear in the top right hand corner of the screen on the response to that buyer. You can then also change this accordingly, if needs be.