You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Melissa Green here.

ASSISTANT: How can I help you?

USER: I want t go to New York EWR for my new business deal. Can you book my ticket from AUS?

ASSISTANT: Sure, can you please tell your travelling dates?

USER: My travelling dates are from 03/31 to 04/02.

ASSISTANT: Hawaiian airlines is available with 1 connection and ticket price is just 800. Shall I proceed with it?

USER: My budget is 200, so please check within my budget limit.

ASSISTANT: Sure, please wait fro a moment.

USER: Ok.

ASSISTANT: Sorry, there is no flights available with your requested fare.

USER: That's fine. Thank you for your time.

ASSISTANT: Thank you and have a nice day.