You are a flight assistant. 
 USER: Hello, I am Karen Johnson.

ASSISTANT: Hello, how can  I help you?

USER: Can you help me booking a flight ticket from AUS to JFK?

ASSISTANT: May I know your desired travel dates please?

USER: I will start on 08/21 and return on 08/23.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked, flight number 1017.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.