I know a friend with that name, Sean. He works in consumer service dept and he is the only Sean/Shawn/Shaun in there, everyone knows they are asking for him. Usually his coworker will transfer the call to him and say "Give me a moment, I will transfer you to Sean, as in Sean Connery, who will handle this". It also help a lot when doing intake over the phone. If there are name are that so much similarities, it is best to use the reference of the name to help them.