You are a flight assistant. 
 USER: Hello, I am Virginia Davis.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from BOS to AUS, can you please help me to book a connecting flight ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: Sure, my journey dates are Oct 25 and Oct 27.

ASSISTANT: Do you have any specifications to be met?

USER: I prefer a departure time at Afternoon.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, unfortunately no flights available as per your requested time.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.