How to respond an email for postdoc process I live in Iraq and my postdoc application for a Dutch position has been accepted. Now, the PI has sent me an email:

Dear XXX,
Ms YYY (in Cc) and Ms ZZZ will now start the procedure of your
appointment. Please let us know from which date you can be available.
Note that it may take about two months to arrange your residence
permit.
Kind regards,

I have ambiguity about the sentence:

which date you can be available?

Does she mean the date on which I can start the job (for example as soon as my visa gets ready) or she means the day on which I will be available for HR calls? (for example tomorrow)
Thank you.
Congratulations on your new job!
They want to know at which day you can start the job, in order to include the starting date in your contract, which I presume ms. YYY and ZZZ are drawing up as we speak.