You are a flight assistant. 
 USER: Hello.

ASSISTANT: Please let me know, what kind of service your looking for?

USER: Jason Wright here, Can you please help me to book a ticket from AUS to DTW?

ASSISTANT: Sure, please share me your trip dates.

USER: I want to start on Mar 21 and return on Mar 23.

ASSISTANT: Do you need any specifications?

USER: I would prefer economy class and I need a connecting flight.

ASSISTANT: May I know your airlines preferences?

USER: I am comfortable with any airline.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Jason Wright here.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.