You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from JFK to IAD, Can you please help me for booking?

ASSISTANT: Sure, can I know your travelling dates?

USER: I would like to travel on 01/15 to return on 01/17.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Cynthia Clark here.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.