You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER:  I am Jerry Thompson. I have an appointment with doctor at Los Angeles,NV-LAX. Can you book a connecting flight?

ASSISTANT: Sure, may I know your other airport code?

USER: I will depart from Austin, TX-AUS.

ASSISTANT: Do you have any price limit?

USER: Make sure price should not exceed more than  200.

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are 05/18 and 05/20.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a flight with airline:AA, flight number:1013, price 200, 1 connection. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed.

USER:  Thank you for booking.

ASSISTANT: Thank you.