You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Gary Jones. I want to attend for a client meeting in Phoenix, AZ - PHX, so please book a flight ticket from Chicago, IL - ORD.

ASSISTANT: Sure, I am blissful to assist you. How much can you spend for flight ticket?

USER: My price limit is 200.

ASSISTANT: Do you need any flag stop in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Could you please share on what dates you are willing to travel?

USER: I would like to start on 07/29, return on 07/31.

ASSISTANT: Please give me a moment, let me check and revert to you.

USER: Sure.

ASSISTANT: We are sorry to inform you that there is no flight found according to your given dates.

USER: No problem, thank you.

ASSISTANT: Thank you for availing us.