You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Paul Williams. I want to travel from DTW to AUS. Can you help me in booking a flight ticket?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I want to travel in the flight on Jan 30 and Feb 01.

ASSISTANT: There is a connecting flight 1013 with price 100, can I proceed?

USER: I want to return in evening time.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.