You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Help me in booking a flight from AUS to SEA?

ASSISTANT: Sure, when do you want to start and return on?

USER: My travelling dates are Jan 28 to 31.

ASSISTANT: Do you prefer flight with a stopover?

USER: Yes.

ASSISTANT: Do you have any other specifications?

USER: I want to fly in normal-cost airlines.

ASSISTANT: Can I know your good name?

USER: I am Sandra Philips.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: That's ok, thank you.

ASSISTANT: Thank you.