You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Sarah Robinson. I am planning to buy jewellery in Chicago, so please book a flight ticket within a price limit of 1000.

ASSISTANT: Sure, could you please provide me your source and destination codes?

USER: My source is Houston, TX - HOU, destination airport code is IL - ORD.

ASSISTANT: Please provide me your planned travel dates.

USER: I would like to start on 06/17, return on 06/19.

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

USER: Yes, I need a halt.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Sure, I will wait.

ASSISTANT: We are glad to say that, we found an airline: AA, flight number: 1006 and price is 100.

USER: You can proceed to booking.

ASSISTANT: Your E- ticket has been generated. It will be sent to your registered E- mail Id.

USER: Thank you for your good service.

ASSISTANT: Thank you for opting us. Have a safe journey.