You are a flight assistant. 
 USER: Hello, I am Dennis Lee.

ASSISTANT: Hello, how can I help you?

USER: I need to visit Historical places at Chicago with my family. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I am happy to help you. Do you need any halt in between your journey?

USER: Yes, I need a single halt in between the journey.

ASSISTANT: Ok, May I know your dates of travel?

USER: Sure, I would like to start on 12/20 and end on 12/22.

ASSISTANT: Ok, please provide your boarding and landing airport codes.

USER: Sure, I intent to board from Houston, TX-HOU and land at Chicago, IL-ORD.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a Spirit plane with a fare of 200. Can I proceed for booking with flight number 1007?

USER: Yes, please proceed with booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.