Need help with combining Data from 2 sheets

Good Day,

I have 2 spreadsheets of training records. One contains an employees name (Column A), the training course (Column B) and a column stating if they have completed the training or not (Column C). The second sheet has the Employee name (Column A), the training course (Column B), the date the course was taken (Column C) and the date the course expires( Column D).

I'm looking to add the date the course was taken and the course expiry date to sheet 1. However, it's not a simple copy/paste. Not every course has an expiry date and courses without expiry dates are not indicated on sheet 2.

Is there any way to cross reference 2 columns from sheet 1 with 2 columns from sheet 2 and place the corresponding rows from columns C and D onto sheet 1?

I’m somewhat of an excel newbie and I have tried messing around with vlookup but was unable to make it work.