Natural phrasing when introducing yourself and the reason you are arriving somewhere


I'm looking for a natural expression to introduce myself and the reason I have
come to a certain place. In my specific case, I will be going to a school to
observe (with an appointment at a specific time), but if I can use this
pattern for more general usage, that would be great.

I am thinking of something along these lines:

[code]

    僕はスミス・ジョンと申します。見学にまいりました。
    
[/code]

This seems simple and safe, but I thought maybe it would be better to join
these a single sentence.

[code]

    僕はスミス・ジョンと申しまして、見学にまいりました。
    
[/code]

(As a side question, would 〜見学に来ております be more natural sounding?)

Alternatively, I have seen a pattern where information about the person is
used before their name, as in:

[code]

    僕は、見学にきた、スミス・ジョンと申します。
    
[/code]

Somehow saying "〜に参った" sounds like it could be misinterpreted so I used "きた"
instead. But I may be wrong.

If anyone has any suggestions please let me know.

EDIT: Thinking about this again, I think the "僕は" part really isn't needed.
Let me know if I am right about that.




My standard would be the following (when I visit companies i just omit the 見学
nount as just say I have the appointment)

> XX時の見学の約束を頂いているスミスと申しますけども

At which point they should respond with something like お待ちしておりました (we were
waiting for you (no negative implication) and give you instructions on what to
do next

