You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me to book a flight from ORD to PHX?

ASSISTANT: Can I know your travelling dates?

USER: Sure, I want to depart on Mar 18 and need to return on Mar 20.

ASSISTANT: Please let me know your connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: May I know your name?

USER: Steven Lee.

ASSISTANT: Here is a flight ticket with fare 100 and 1002 as flight number in Southwest airline. Shall I proceed with booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.