You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Christopher Rodriguez, I am going to visit Navy Pier with my wife. Can you find a flight to Chicago on 07/28 and return flight on 07/30?

ASSISTANT: May I know your preferable airport codes, please?

USER: We will fly from NY-JFK to IL-ORD. Please find a flight under price of 1000.

ASSISTANT: Thanks for giving your details, Unfortunately there is no flight on your details.

USER: Thank you for the information.

ASSISTANT: Thank you so much for choosing us.