You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to book a flight ticket to Charlotte with price limit under 200. Can you please help me with it?

ASSISTANT: Sure, I am here to help you. Please share me your airport codes?

USER: Airport codes are DCA-CLT.

ASSISTANT: May I know your trip dates please?

USER: My trip dates are 06/30 and 07/02.

ASSISTANT: Do you have any other specifications?

USER: I need a single connection in between the journey.

ASSISTANT: May I know your name please?

USER: My name is Rachel Williams.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thanks for waiting. Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: OK, no issues. Thanks for the help.

ASSISTANT: Thank you for booking the flight ticket from us, have a nice journey.