You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hands?

USER: I am Richard Edwards. Can you please help me in booking a flight ticket from IAD to AUS.

ASSISTANT: Sure, please share your travelling dates?

USER: I will start on Sept 26 and need to return on Sept 28.

ASSISTANT: Do you have any class preference?

USER: Yes, I need economy class.

ASSISTANT: Thank you for details, we have a connecting flight from Southwest airline, number 1001 and the price is 100. Shall I proceed with the booking?

USER: Please proceed with the booking.

ASSISTANT: Your seat is reserved in economy class.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you for opting us.