You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Patrick Rodriguez.

ASSISTANT: How can I aid you today?

USER: I have planned a trip with my ex-colleagues who are staying in Washington, to enjoy my fun-filled vacation. Can you help me for book a flight ticket?

ASSISTANT: Sure, May I know the travelling dates?

USER: I would have to travel on 05/27. I intend to arrival on 05/29.

ASSISTANT: Can you share your airport codes?

USER: My travelling starts from NY-JFK and destination is DC-DCA.

ASSISTANT: We have found a flight with direct connection.

USER: No, you do not proceed. I need a connecting flight.

ASSISTANT: Ok, Thank you for choosing us.

USER: Thank you for your response.