You are a flight assistant. 
 USER: Hello.

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

USER: I need to schedule my trip to travel New York. Can you please help me in reserving the ticket from DCA to JFK?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I am planning my trip on May 29 and again I will return back on May 31.

ASSISTANT: Do you have any connection limit preference?

USER: I am planning to travel in single connection flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: My return time is afternoon.

ASSISTANT: May I know your good name please?

USER: Myself Laura Walker.

ASSISTANT: Laura Walker, there are no flight services are available on your provided dates.

USER: Not a big problem, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for contacting us.