You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Dorothy Lee.

ASSISTANT: Ok.

USER: Can you help me booking a flight ticket from JFK to IAH?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I will start on 02/13 and return on 02/15.

ASSISTANT: Let me know your connection limit.

USER: I need a direct flight.

ASSISTANT: Do you have any other requirements?

USER: I want to return in evening time.

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

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for choosing us.