You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Amanda King. I want to book a flight ticket with a price limit of 500. Could help me in booking a flight ticket with a single connection?

ASSISTANT: Sure, I am here to help you. Can you please provide your dates of travel?

USER: My departure is 10/22 and return date on 10/24.

ASSISTANT: To proceed with booking may I know your journey points?

USER: I am planning to visit Cloud Gate in IL - ORD and source from PA - PHL.

ASSISTANT: Please wait for a while, I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Sorry, We found a direct flight with fare 800.

USER: Don't proceed to booking.

ASSISTANT: Thank you for choosing us.

USER: Not an issue. Thanks for your service.