You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I am William Thomas. I want to book a flight ticket to attend my friend wedding in Los Angeles. Could you help me in booking a flight ticket?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: I would like to fly on 10/17 and return on 10/19.

ASSISTANT: May I know your airport codes?

USER: My source is Chicago, IL - ORD and destination is CA - LAX.

ASSISTANT: Thank you for details. A flight with price 100 having single connection is found in Southwest airline. Shall I proceed with it?

USER: You can proceed to booking.

ASSISTANT: Your ticket is confirmed in flight number 1026.

USER: Thank you for kind service.

ASSISTANT: Thank you for reaching us.