Hi,
The best will be to create some order custom field.
For the date, we have the custom field "advanced date picker" (it require to activate the plugin).
For the our, you can do it using the type "dropdown". Then you will be able to create the values you want to add in the list.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.