You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Katherine Carter. Can you please search a direct flight for me to reserve my ticket?

ASSISTANT: Sure, can you please provide your nearest airport codes of journey?

USER: My travelling airport codes are ORD to JFK.

ASSISTANT: May I know your preferable journey dates to proceed further?

USER: My preferable dates are 11/12 and 11/14.

ASSISTANT: Katherine Carter, there are no direct flight services available on this route on your provided dates.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for contacting us.