You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Frank Allen here, can you help me to book a ticket from AUS to BOS?

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

USER: My travel dates are Mar 17 and Mar 19 respectively.

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

USER: I am looking for a business class.

ASSISTANT: Let me know your connection limit.

USER: I need a break journey.

ASSISTANT: Do you have any other requirements?

USER: No.

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: Not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.