Julia Hartley-Brewer clashed with RMT secretary Mick Lynch this morning, suggesting we don't need staff to help buy tickets on the London Underground.
Lynch also suggested that London Mayor Sadiq Khan is to blame for the misery witnessed across the capital today.
He spoke to talkRADIO as a 24-hour tube strike continues to cause chaos across London, with several stations closed and many lines running a limited service.
The dispute centres on staffing levels at tube stations, specifically the widespread closure of ticket offices which has raised the ire of the unions.
Lynch told Julia Hartley-Brewer that "a lot of people using our system find it quite daunting and complicated," so staff are needed to help them buy tickets. However Julia argued that buying a train ticket is not that complicated, leading Lynch to call the presenter "patronising."
Lynch also said Sadiq Khan is the man ultimately responsing for ending the present dispute, suggesting he must make sure staffing is at the right level.
He said that TfL is saying "a lot of money" by cutting staffing, but suggested "it’s a very serious situation" when control rooms and stations are unstaffed.
Listen to the full interview above