You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Brian Wilson here.

ASSISTANT: Ok.

USER: I would like to attend my friend's wedding at Dallas, please help me in booking a ticket from CLT to DFW.

ASSISTANT: Sure, we are here to help you. May I know your price limit?

USER: My budget for this trip is below 1000.

ASSISTANT: Could you please share your scheduled travel dates?

USER: My planned travel dates are on May 18 and May 20.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, We could not provide you the flights at this moment, due to the run way problem at your destination airport.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us, hope to serve you better next time.