You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a flight ticket from AUS to BOS, Can you please help me for booking?

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

USER: I would like to travel on 10/12 to return on 10/14.

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

USER: I need a economy class.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a normal cost airline.

ASSISTANT: May I know your good name please?

USER: Sandra Williams.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.