You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me with booking a flight ticket from AUS to DTW?

ASSISTANT: Please provide me your itinerary travel dates.

USER: My itinerary travel dates are from Apr 15 to Apr 17.

ASSISTANT: Is there any connection limit?

USER: I am looking for a direct flight in my journey.

ASSISTANT: Are there any more preferences that you want to avail?

USER: No, thank's for asking.

ASSISTANT: May I know your name please?

USER: Sure, myself Samantha Edwards.

ASSISTANT: Give me a moment.

USER: Sure, take your own time.

ASSISTANT: Samantha Edwards. I regret to inform that there are no flights on your route.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.