SSIS Expression to Isolate a String - sql-server

Question

I am building an SSIS package that will populate data from an Excel Spreadsheet into our Database for Reporting.
The customer did not provide an individual column for the City and Unfortunately, the customer cannot update their export file to add the city, so I am trying to build a city column using the Branch Names.
I need an SSIS Expression (or several) to use in a Derived Column Transformation to pull the Name of the Cities out of the Branch Name. The issue I have is that the Spacing and placement of the names varies. I have tried to use Token, Sub string and Right and Left combined with other expressions and I always seem to cut something off.
Has anyone else run into this and how can I fix it. (I am not familiar with C# to use a Script Component).
Here is a Sample of the Data that I have.
Branch Name
JS OMAHA - 09
JS SIOUX FALLS - 48
JS DOWNINGTOWN - 53
JS ST PAUL - 70
JS BLOOMINGTON - 103
JS PITTSBURGH NORTH -149-
JS TINTON FALLS - 186
JS BLAINE - 337
JS ROCHESTER MN - 423

Answer 1

Do you have a list of valid cities sitting in a table? If so you can use a lookup transformation.
Lets say your list if cities is in a table called city
On the General tab pick No Cache
On the Connection tab tab pick the city table
On the Columns tab tab match the Branch Name column to the city column in your city table
In the Advanced tab, tick Modify the SQL statement and change the end to where [Branch Name] Like '%' + ? '%'
Now your lookup will find the closest match and pass it through as an extra column.
The other way is to load it all into a staging table and do an UPDATE, also using LIKE
Whatever you do, it will help to have a list of valid cities in a table
The other way is to make an assumption about the tokens in the data and use string functions in a derived column transformation to extract it out, but you can get some unexpected results.
I can expand further on these if you wish but I won't waste time if you're never going to return to the question.

Answer 2

Whilst you stated that you are not familiar with script components - they are the correct tool for the job. You will get much greater flexibility by using C# (or VB.Net) code to manipulate your strings. There are a number of good tutorials online to show you how to use a script task, and lots of information about string manipulation in C#.