Good name for this angular service : <p>at first I thought this is to stupid to ask, but then I said why not :-).
I'm building a angular 4 app.
I have a tranasction entity in database. 
The only purpose of this transasction is to group other orders.
tranasction has 2 properties</p>

<ol>
<li>Id</li>
<li>UserId - the user the created the transaction.</li>
</ol>

<p>At first only authenticate user could create a tranasction, so I've created a tranasctionCreator.create(userId) that returns the transasctionId.
due to product changes, now a guest can create a transaction and only after login it will be assigned with him.</p>

<p>So I'm wondering what should I do:</p>

<ol>
<li>leave tranasctionCreator service untouched , and add new service
tranasctionUserAssigner.assign(tranasctionId, userId)</li>
<li>Change transactionCreator name and group both functions. the problem with this is that I can't find a good name for this service</li>
</ol>
