Conditional dynamic fields

I have a form that I'd like to have some hidden fields populated based on other fields.

Specifically I'd like to use a DATE field that user inputs and create a text field. Eg in the date is in January I'd like the text field to be "01-jan", if infeb, "02-feb", etc.

I'd also like to do a basic conditional on a country dropdown so that

if country = United Kingom

then text = "uk"

else

text = "int"

Can these both be done using "Dynamic fields"?

Thanks