You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have planned a trip with my family to visit DC-DCA for that I am not getting to how to book a flight ticket, can you help me to book a flight?

ASSISTANT: Yes, I can help you with that. Can you provide me your dates of travelling?

USER: My travel dates are 11/19 and 11/21.

ASSISTANT: Ok, could you please provide your nearest source airport code for boarding the flight?

USER: My nearest airport code is NY-JFK.

ASSISTANT: Give me a moment, I will get back to you.

USER: Sure.

ASSISTANT: I have found a flight for you with a fare of 200 and 1 connecting flight. Can I proceed to booking?

USER: Can you check once is there any direct flight for this route.

ASSISTANT: Sorry, there is no direct flight in your route. Can I know your name for documentation?

USER: It's ok. I am Charles Anderson.

ASSISTANT: Thank you for your help.

USER: Welcome.