You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am David Collins, I want to book a flight from CA-SFO to IL-ORD. Can you book a flight with a single connection?

ASSISTANT: Sure, can you please let me know your journey dates?

USER: I will fly from 12/16 and return on 12/18.

ASSISTANT: How much you can spend for airfare?

USER: My budget for flight ticket is 200.

ASSISTANT: We found a connected flight of 1012 AA airlines and the fare of 100. Shall I proceed to booking?

USER: Sure.

ASSISTANT: Your ticket has been confirmed successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you for connecting with us.