You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brian Baker.

ASSISTANT: How may I serve you today?

USER: Could you please book a flight ticket from Chicago, IL-ORD to Phoenix, AZ-PHX?

ASSISTANT: Sure, I'll help you in booking. Could you please help me by providing your journey dates?

USER: I want to travel on Sept 20 and return back on Sept 22.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight in between my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for sharing your journey details, we found a economy class ticket in Southwest airline with flight number-1018. Shall I book the ticket?

USER: Yes, please confirm my ticket with this flight.

ASSISTANT: Your ticket has been confirmed with the connecting flight.

USER: Thank you.

ASSISTANT: It's pleasure to serve you.