You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How can I help you today?

USER: Is there any flight with price 1000, connection 0. From NY-JFK to DC-IAD.

ASSISTANT: We will check it, and get back to you, if you provide travel dates?

USER: Dates are 02/17 - 02/19.

ASSISTANT: Could you please tell your name?

USER: Kevin Lee.

ASSISTANT: Ok, We checked in our data, but no flights available, which you specifed.

USER: Thanks for the response.

ASSISTANT: Thank you.

USER: Thanks.