I am pax myself, and can only comment from what I have seen of this type of request in other threads, you might be able to get a visit at the end of the flight. However, even this is doubtful.
You could trying asking in advance of the trip in writing, so as to make it formal and on the record. However, I doubt that anyone will let you do so.
Search all the forums and you will find that this question has been asked several times in recent months.