You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Carter.

ASSISTANT: How may I be of your assistance?

USER: I need a direct flight, could you please help me with booking a flight ticket?

ASSISTANT: Sure, we are here to help you in booking. Kindly share your source and destination points.

USER: I want to board from Charlotte, NC-CLT and land at Atlanta, GA-ATL.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: My travelling dates are 04/21 and 04/23.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

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

USER: No worries, thank you for the information.

ASSISTANT: Thank you for approaching us.