You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me to book a flight ticket from LAS to HOU?

ASSISTANT: Sure, help me with the trip dates?

USER: I planned my trip on the dates Jan 13 and Jan 15.

ASSISTANT: May I know your good name please?

USER: Myself Carol Miller.

ASSISTANT: Do you have any preferences?

USER: I prefer evening flight at the time of take off.

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

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.