What should I enter for my intended dates of arrival and departure when applying for the Thai DTV freelance visa?

Hey guys I’ve started the only application on the official Thai E-Visa for the DTV freelance visa. It’s asking for milk “INTENDED DATE OF ARRIVAL” and “MY INTENDED DATE OF DEPARTURE” issue with attended date of arrival is I’m applying from Spain n from the search ppl have had a 1 approval reply after their application and others it’s taken up to 5”6 weeks,

So I don’t know what to say re my date of arrival and Flight number ……

Secondly “INTENDED DATE OF DEPARTURE” the visa is 5 years do I say 5 years for my departure date? 🙏 what did you all do for this part?