You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Stephen Hill here. I want to attend a seminar in Boston. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, could you please mention with your dates of journey?

USER: My departure date is 06/03 and return date is 06/05.

ASSISTANT: Ok, may I know your respective airports codes please?

USER: My airport codes are from AUS to BOS.

ASSISTANT: Please wait for a mean while.

USER: Ok, I will wait.

ASSISTANT: There is a flight with the Spirit airline and flight number is 1010, shall I book this ticket?

USER: Make sure my price limit is 500.

ASSISTANT: Your ticket has been reserved within the price limit 200.

USER: Thanks for helping me.

ASSISTANT: You are welcome.