You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you?

USER: I need to book a flight from Washington, DC-IAD to Austin,TX-AUS so could you help me with it?

ASSISTANT: Can you please provide your name?

USER: Yes, my name is David Smith.

ASSISTANT: OK, May I know your departure day and arrival day?

USER: OK, my travelling dates are from Oct/29 to Oct/31.

ASSISTANT: OK, can you please wait for sometime?

USER: Sure.

ASSISTANT: Thank you for your patience, I found a flight with your given details, Shall I proceed for booking?

USER: OK, please proceed with booking.

ASSISTANT: OK sure, your ticket is confirmed with flight number: 1018, airline: UA, price: 100.

USER: Thank you.

ASSISTANT: Thank you, Wish you a happy journey.