You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am planning to book a flight ticket to MSP from AUS, can you please help me out?

ASSISTANT: Please provide your trip dates.

USER: Sure, my trip dates are Apr 27 and Apr 29.

ASSISTANT: Do you need any connection limit?

USER: I prefer direct flight.

ASSISTANT: Is there any other specifications to be met?

USER: No more specifications.

ASSISTANT: May I know your name?

USER: Sure, my name is Ryan Roberts.

ASSISTANT: No flights available on your routes to travel.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for opting us.