You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you aid me to book a ticket from IAD to JFK?

ASSISTANT: Sure, please provide me the planned travel dates.

USER: I will depart on Jan 31 and Arrival on Feb 2 respectively.

ASSISTANT: May I know the connection limit?

USER: I need a direct flight.

ASSISTANT: Please provide me the name.

USER: Shirley Clark here.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.