You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Gregory Mitchell. I want to book a flight ticket to attend an cultural fest at NY-EWR from TX-AUS. Can you help me?

ASSISTANT: Sure, I will help you with this. Could you please share your journey dates?

USER: 09/21 and 09/23 are my travelling dates.

ASSISTANT: Do you need any halt in this journey?

USER: I am comfortable with any flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: I need a flight ticket within 200.

ASSISTANT: Gregory Mitchell, there are no flight services available on this route on your provided dates.

USER: No issue. Thank you for the information.

ASSISTANT: Thank you for contacting us.