You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Stephen Clark. I am planning to visit Lady Bird Lake at Austin, could you please help me with booking a flight ticket?

ASSISTANT: May I know your desired travel dates please?

USER: I would like to take off on 07/19 and return on 07/21.

ASSISTANT: Can you please provide your airport codes?

USER: My source airport code is OAK and destination airport code is AUS.

ASSISTANT: There is a flight with connection limit 1 and fare 100, is it ok for you?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked, flight number 1017 with Hawaiian airlines.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for choosing us.