You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: Carol Johnson here.

ASSISTANT: Ok.

USER: I want to visit New York, can you please help me to reserve my ticket from DCA to JFK?

ASSISTANT: Sure, can you please tell me the travelling dates of your journey?

USER: Ok, my preferable dates of journey is from 05/17 to 05/19.

ASSISTANT: Ok, please wait for a while.

USER: I want direct flight.

ASSISTANT: Sorry, there are no direct flights.

USER: No problem.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you for your information.