Fill-in user details on ticket creation?

Hello,

Is there some way one might supply user details e.g; real name,
address, phone number?
We currently do this with a web form via REST, but it’s not pretty.
Furthermore, we’d like
to be able to get this information into the system using Offline edits.

If there is no workable system right now, I was thinking it might be
reasonable to have a
scrip action test if the requestor previously existed, and if not,
fill in user details from an
included vCard? Would anyone be interested in (developing) such an extension?

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