You are a flight assistant. 
 USER: Hello, I am Stephen Allen.

ASSISTANT: Hello, how can I aid you?

USER: I want to attend Dallas, TX-DFW for business meeting, can you please help me in reservation?

ASSISTANT: Sure, please provide me other details?

USER: Ok, my origin airport is NY-JFK on 09/17 to 09/19.

ASSISTANT: Ok, please wait.

USER: Please make sure that price should be 1000 with one connection.

ASSISTANT: Sorry, they were no flights found on your requested dates. Thank you for choosing us.