You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emily Collins.

ASSISTANT: How may I aid you for the day?

USER: I want to travel from BOS to AUS. Can you help me to book a flight ticket?

ASSISTANT: Emily Collins, do you need a connecting flight?

USER: I am looking for a direct flight.

ASSISTANT: May I know your depart and return time for this journey?

USER: I want to travel in the flight on Aug 14 and Aug 16. I want to return in morning time.

ASSISTANT: Ok, do you have any other preferences?

USER: No.

ASSISTANT: Sorry to tell you, there is no flight available on your requested details.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for connecting with our services.