Complete beginner, request from boss, pivot table

Hello, I'm a complete beginner at Excel but my boss has asked me to compile a huge amount of simple data.

2 fields

Nation, Travel Agent

I would like to create a simple pivot graph. That's easy enough, but I would like a THIRD field which COUNTS the number of occurrences of Nation and Travel Agent that MATCH.

For example

Italy Travel Corp
Italy Travel Corp
Italy Travel Corp
France Happy Corp
France Happy Corp
France Happy Corp
France Happy Corp

In the pivot table I would like it to show THREE customers from ITALY referred by TRAVEL CORP.
So in the same way also FOUR customers from FRANCE referred by HAPPY CORP.

I hope someone can help, Excel has a steep learning curve it seems,

Regards,
HelperBoy