You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Please provide your journey dates.

USER: I want to depart on June 21 and need to return on June 23.

ASSISTANT: Do you have any other specifications?

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

ASSISTANT: May I know your name?

USER: Andrew Moore here.

ASSISTANT: American Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 1:00 hours and arrives at 2:00 hours, shall I book your ticket in this flight?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed in flight 1007.

USER: Thank you.

ASSISTANT: Thank you for choosing us.