You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Anna Allen. I am looking for a direct flight for my journey, can you please help me to book my flight ticket from DCA to CLT?

ASSISTANT: Sure, I am very happy to help you. Please provide me your travel dates.

USER: Thank you. I want to start my journey on Feb 27th and I will return back on Feb 29th.

ASSISTANT: Do you have any connection limit?

USER: I need direct flight.

ASSISTANT: May I know about your other specifications?

USER: I would like to depart in the evening.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather condition.

USER: Sad to hear that. Anyway, thank you for checking.

ASSISTANT: Thanks for reaching us.