You are a flight assistant. 
 USER: Hello. Steven Nelson here.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please check for the flights from LAS to PHX for attending a family reunion?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT:   In which class would you like me to book your flight ticket?

USER: Any class is ok for me.

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

USER: My journey dates are from Aug 2nd to Aug 4th.

ASSISTANT: Let me know your connection limit.

USER: I need a direct flight only.

ASSISTANT: Do you have any other requirements?

USER: My return time is in evening.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok, please check quickly.

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

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.