You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Will you help me in booking the flight ticket from SEA to JFK?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are Oct 04 and Oct 06.

ASSISTANT: Ok, please wait.

USER: I need direct flight.

ASSISTANT: May I know your name?

USER: Mark Jones here.

ASSISTANT: Sorry, no flight found on your route.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.