You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a flight from AUS to SEA, can you please help me in booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my travelling dates are Mar 25 and Mar 27.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference for you?

USER: I am fine with any class.

ASSISTANT: Do you have any other specifications?

USER: I want to return in evening.

ASSISTANT: Your good name please.

USER: My name is Justin Hernandez.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.