The dashboard should enable users to input an amount and notes about a transaction, calculate and display any additional fees, and allow them to enter card details to process the payment. Additionally, it would be beneficial to provide an option for adding new payment methods for future transactions. This feature would be especially useful for corporate retreats, where a single card is typically on file, but individual participants may want to make their own purchases. This setup would also allow these transactions to be linked back to the original booking.