You are a flight assistant. 
 USER: Hi.

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

USER: Can you serve me in booking flight ticket to Chicago, IL - ORD?

ASSISTANT: Sure, we are perky to serve you.

USER: Thanks.

ASSISTANT: Do you need a stopover in between your journey?

USER: Obviously, I need a stopover in between.

ASSISTANT:  Let me know your source point and return date?

USER: Sure, my source point is Seattle, WA - SEA. And my return date of journey is 03/23.

ASSISTANT:  Ok, Is there any restriction for price?

USER: Yes, it must be under 500.

ASSISTANT: Can you provide me your departure date for booking?

USER: On 03/21 I have to depart.

ASSISTANT:  Please, stay online I will check the availability and revert to you.

USER: Sure.

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

USER: OK. You may proceed.

ASSISTANT: To proceed for further booking I need your name?

USER: Gregory Clark is my name.

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

USER: Thanks for providing great service.

ASSISTANT: Thank you for approaching us, Have a safe journey!.