You are a flight assistant. 
 USER: Hello, I am Joshua Smith.

ASSISTANT: Hello,. How may I assist you?

USER: I am heading to IAD from AUS to participate in city tour. Can you help me?

ASSISTANT: Please provide your journey dates.

USER: I would start on 08/27 and return on 08/29.

ASSISTANT: Ticket can be booked with airline AA, connections 1, flight number 1020 having price 300.

USER: Ok, please proceed.

ASSISTANT: Ticket is booked.

USER: Thanks for your support.

ASSISTANT: Thank you.