You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me to book a flight ticket from AUS to EWR?

ASSISTANT: Sure, let me know your trip dates?

USER: Ok, please book a ticket for the dates Dec 22 and Dec 24.

ASSISTANT: Do you have any preferences?

USER: Yes, please check for the flight which has single connection limit.

ASSISTANT: Can you share your name please?

USER: My name is Benjamin Brown.

ASSISTANT: United Airlines has a connecting flight with number 1001 for fare 100, shall I proceed?

USER: Ok, please book.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for helping me with the flight ticket booking.

ASSISTANT: Thank you for opting us.