You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Kevin Parker, I want to book a flight from ATL to LGA. Can you book a flight for me?

ASSISTANT: Sure, let me know your travel dates?

USER: I will fly on June 19 and return on June 21.

ASSISTANT: Do you need any break in between your journey?

USER: No, I want a direct flight.

ASSISTANT: Can you please share your flight timings?

USER: Please book that flight which return in evening.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Thanks for your details, sorry there is no flight found on your desired routes due to abnormal weather conditions.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for availing us.