You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want the flight with 1 connection limit, can you please help me out?

ASSISTANT: Sure, I will search based on your request.

USER: Thank you.

ASSISTANT: Let me help in providing your probable planning dates.

USER: The planned dates are 04/19 to 04/21.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: The source code is from NC-CLT and the destination code is DC-IAD.

ASSISTANT: Mean time, may I know your name for reserving your plane ticket?

USER: Sure, my name is Jerry Brown.

ASSISTANT: Sorry, due to busy schedule there is no airlines providing a flight ticket on your regional dates.

USER: Ok, no problem.

ASSISTANT: Thank you for communicating us with your query.

USER: Thank you for your information.

ASSISTANT: Most welcome.