You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please book a flight ticket from AUS to ORD?

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

USER: Thank you. I have planned my travel dates as Feb 21 and Feb 23.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Please go with my name Ashley Roberts.

ASSISTANT: Let me know your connection limit?

USER: Sure, I am looking for single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: Yes, I would prefer business class to travel so please make sure that.

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

USER: Sure, take your time.

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

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.