Listen and repeat. Who says each sentence/phrase: a ticket seller? a passenger?

Here's who says each phrase:

• Next, please. - Ticket seller
• Where to? - Ticket seller
• Single or return? - Ticket seller
• Return to Barbican, please. - Passenger
• That's £6.00. - Ticket seller
• Which line do I take, please? - Passenger
• You're welcome. - Ticket seller