You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you today?

USER: I would like to book a flight ticket to attend international conference about religious festivals, so please book me a flight ticket  from Houston, IAH to Los Angeles, CA - LAX.

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: May I know on what dates you prefer to travel?

USER: I will prefer to go on 11/11 and return back on 11/13.

ASSISTANT: Do you prefer any stopover in between your journey?

USER: Yes, I will prefer a halt.

ASSISTANT: Let me know your name please?

USER: My name is Andrew Collins.

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

USER: No issue, thank you.

ASSISTANT: Thank you for opting us.