You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for today?

USER: Can you please help me to search a flight with 0 connection limit?

ASSISTANT: Sure, could you please share your travelling dates?

USER: The departure date is 12/28 and I will return on 12/30.

ASSISTANT: Noted, kindly can you please provide the airport codes you want to travel?

USER: Sure, the respective airport codes are from MA-BOS to DC-DCA.

ASSISTANT: Sorry to say, no direct flights were found with your requirements.

USER: Ok, no problem.

ASSISTANT: May I know your name for documentation purpose?

USER: My name is Emma Clark.

ASSISTANT: Thank you for contacting us. Have a nice day!.

USER: Thank you for your information.