You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you now?

USER: Can you please help me in booking my flight ticket from JFK to IAH?

ASSISTANT: Sure, may I know your travel dates please?

USER: My travelling dates are Aug 12 and Aug 14.

ASSISTANT: Let me know your connection limit, please.

USER: I need single connection flight.

ASSISTANT: May I know your class preference?

USER: I prefer business class ticket.

ASSISTANT: Do you have any other specifications?

USER:  No.

ASSISTANT: Let me know your name to proceed.

USER: Myself Brenda Williams.

ASSISTANT: Sorry, we have not found any flights running on that routes due to abnormal weather conditions.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for choosing us.