I remember seeing this movie on VHS video from Blockbuster in Australia around 2000.

The main part of the movie I remember revolves around a bus company where the owner of the company is required to stand in and drive the bus as the last driver called in sick. Some of the people on the bus were going to a convention (something like I love lucy) and the driver falls in love with one of the passengers.  She doesn’t realise he is the owner of the company.  The bus breaks down along the way and the two separate when the replacement bus shows up.

Any help gratefully accepted.