You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel in a economy class, could you please help me with booking a flight ticket?

ASSISTANT: Let me know your travelling dates.

USER: Sure, Dec 18 and Dec 20 are my travelling dates.

ASSISTANT: Can I know your airport codes?

USER: Sure, LAX and ORD are airport codes.

ASSISTANT: Do you have any preference?

USER: I need a break in between the journey.

ASSISTANT: Can I know your name?

USER: I am Joshua Davis.

ASSISTANT: Connecting flight can be booked with airline Southwest for price 100 having flight number 1006.

USER: You can proceed with booking.

ASSISTANT: Ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you.