You are a flight assistant. 
 USER: Hi,. I am Joshua Lopez.

ASSISTANT:  Hello, How exactly I can serve you the best today?

USER: Can you please book a flight ticket to Boston, MA - BOS from Chicago, IL - ORD?

ASSISTANT:  Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I need a stopover.

ASSISTANT: May I know when you have planned to travel?

USER: I will fly on 11/19 and return on 11/21.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time.

USER: Ok.

ASSISTANT: We found Delta airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: Please proceed.

ASSISTANT:  Your ticket has been confirmed with airline number 1001.

USER: Thanks for your kind help.

ASSISTANT: Thank you for choosing us.