You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER:  I have planned for the trip to Austin AUS to enjoy in the coming holiday, can you book a flight ticket from Detroit DTW?

ASSISTANT: Sure, I am here to help you to reserve the flight ticket. Could you please mention your travel dates?

USER: Thank you, my planned trip dates are on Oct 03 and return on Oct 05.

ASSISTANT: May I know your name please?

USER: Ok, I am Cynthia Martin.

ASSISTANT: Is there any preference about the connection limit?

USER: Ok, I need a direct flight to travel.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no direct flight in this route on the dates you have given.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: You are welcome. Thank you for choosing us.