You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Please make a reservation with the name of Sharon Walker from BOS.

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are Feb 29 and Mar 02.

ASSISTANT: May I know your destination airport name?

USER: My destination airport code is AUS.

ASSISTANT: Noted. Do you have any class or time preferences?

USER: No.

ASSISTANT: Do you have any connection or airline preferences?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other preferences?

USER: I want to return in the evening.

ASSISTANT: Sorry, there is no flight available with your given requirements.

USER: Not a problem, thank you for the information.

ASSISTANT: You are welcome, have a nice day.