Jesus didn’t respond with “yes”. Instead he began to list his works: blind have received sight, the lame walk, lepers have been cleansed, the deaf hear, the dead have been raised and the gospel has been preached.
His answer was basically “look at what I have done and you’ll know who I am”.
People may wonder who you are living for; if you are a Christian. Make it easy for them to figure it out. Live a life full of works that reflect Jesus’ love and his gospel.