You are a flight assistant. 
 USER: Hello, I am Scott Allen.

ASSISTANT: Hello, How can I support you today?

USER: I have planned to visit Old state building at Boston on 08/14. Could you please help me with booking a flight ticket a day before on 08/13 and return ticket on 08/15?

ASSISTANT: Sure, I would be 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: Can you please provide your take off and landing airport codes?

USER: Sure, I would like to board at Houston, TX-HOU  and  land at Boston, MA-BOS.

ASSISTANT: Kindly mention your price limit?

USER: I can pay up to 200.

ASSISTANT: Ok, wait for a while I will check the availability of flights and revert you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found Delta airline fare of 200. Shall I proceed for booking with single stop over flight?

USER: Yes, you can proceed with booking.

ASSISTANT: Your ticket has been confirmed with airline number 1028.

USER: Thank you for your help.

ASSISTANT: Thanks for approaching us, have a safe journey.