Taxi - Season 4 Episode 8
Fledgling

Elaine makes it her mission to try to cure a talented and friendly but troubled artist of his severe agoraphobia (fear of public places). Alex (possibly jealous of Elaine spending time with another man) advises Elaine to leave the treatment to a professional, but she ignores his advice and eventually brings the artist to the garage. Predictably, the artist is scared to leave the cab but while Alex and Elaine bicker about her methods, the artist walks out of the cab and appears to be making progress.