You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to go my sister's home on 10/12. Can you please help me for booking the flight ticket from Denver?

ASSISTANT: Sure, will you mention your airport codes that you want to travel?

USER: The source code is from CO-DEN and the destination airport code is MA-BOS.

ASSISTANT: Please mention your return date of your journey.

USER: The return date is 10/14.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Yes, proceed with my booking in the name of Charles Baker.

ASSISTANT: Your ticket is booked. The flight number is 1009 and the airline is Southwest.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.