You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: Can you please help me to search a flight with 1 connection limit?

ASSISTANT: Sure. Please help me with travelling codes.

USER: The travelling codes are from NY-JFK to DC-DCA.

ASSISTANT: May I know your departure and return dates?

USER: The departure date is 08/09 and the return date is 08/11.

ASSISTANT: Please wait for a while. Please provide your name.

USER: Sure, my name is Timothy Collins.

ASSISTANT: Ok.

USER: Make sure that the price should not be more than 200.

ASSISTANT: No connecting flight is available.

USER: Ok, no problem.

ASSISTANT: Thanks.

USER: Thank you for your help.

ASSISTANT: Have a nice day!.