You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: Please help me out in booking the ticket from PHL to ORD.

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates will be Oct 7 to Oct 9.

ASSISTANT: May I know your good name please?

USER: William Brown is my name.

ASSISTANT: Do you have any preferences for this trip?

USER: I need a connecting flight.

ASSISTANT: There is a flight in an airline Southwest with 1004 number having a single connection in an economy class. Shall I reserve it for you?

USER: Please proceed.

ASSISTANT: Your flight ticket has been done with the booking.

USER: Thank you.

ASSISTANT: Thank you for reaching us.