You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a evening flight from AUS?

ASSISTANT: I will help you with that.

USER: Thank you.

ASSISTANT: May I know your travel dates please?

USER: My travelling dates are Mar 28 and 30.

ASSISTANT: Do you have any connecting preferences?

USER: I want a break in between by journey.

ASSISTANT: May I know your name please?

USER: My name is Sarah Edwards.

ASSISTANT: Is there any specifications for you?

USER: No.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is IAD.

ASSISTANT: No flights found as per your preferences in our database.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for choosing us.