Sometimes customers are interested in booking a two day move (ie: load on Monday, unload on tuesday), so it would be helpful to be able to select those service dates to reflect on their estimates. I often get questions about this.
Additionally, some customers don't have an exact date that they'd like to move, but a week in which they are available. It would be helpful to mark that week as their ideal service dates when creating the estimate, rather than having to select an arbitrary specific date, as we often have to explain that to them.