You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: My name is Barbara Jones, I want to book a single connection flight from Dallas to Chicago to meet my friend.

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I will fly on Feb 23 and return on Feb 25.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: I need a flight from DFW to ORD.

ASSISTANT: Do you require any specifications in your journey?

USER: No.

ASSISTANT: There is a connected flight in southwest airlines with the fare 300.

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me.

ASSISTANT: Thank you.