If two different selections made from drop down menu = to answer in new cell

I have to make a maintenance spreadsheet. I have two drop down menu's in column B4 and C4.

B4 is the office and C4 is the type of maintenance issue. I would like whatever office is selected in B4 and type of maintenance it is in C4 to = to an email address in cell H4.

Please be aware that different offices in regards to different issues will have differentBook1.xlsx email addresses.

Example

Office Issue email
Paris Mail/printroom = mailroom@mailroom.com

Office Issue email
Amsterdam Security Pass = pass@pass.com

Office Issue email
Paris Security Pass = security@mymail.com


The details to link all the answers from the drop down menus are on sheet 2.

I've attempted to do various things I just cant seem to work it out.

Thank you for your help. Book1.xlsx