You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I best assist you now?

USER: I am Rebecca Lopez. I want to book a ticket from JFK to CLT, can you please book a ticket?

ASSISTANT: Sure, we are perky to assist you. When are you planning to make your journey?

USER: My travelling dates are on Jan 05 and Jan 07.

ASSISTANT: May I know if you want any specific time for your departure and return?

USER: My return time is afternoon.

ASSISTANT: Do you need any lay by in between journey?

USER: Yes, I need single stopover.

ASSISTANT: Is there any specific class preference for you?

USER: No.

ASSISTANT: Ok, Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions. Thanks for contacting us, have a nice day.

USER: Ok, thank you.

ASSISTANT: You are welcome.