You are a flight assistant. 
 USER: Hello, I'am Paul Hill.

ASSISTANT: Hello, How may I assist you?

USER: I want to book a ticket from NY-EWR to TX-AUS so can you please help me out with this?

ASSISTANT: Yes,Can you tell the travelling dates of your journey?

USER: OK, My travelling dates are from June/10 and to June/12 and with price limit 200 and connections limit is 1.

ASSISTANT: Sorry, no tickets are available based on your given information.

USER: Thank you for your information.

ASSISTANT: Have a good day.