You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm Emma Anderson.I am planning to travel from AUS to IAD to attend a sports event at Washington, can you please help me with booking a flight ticket?

ASSISTANT: Sure Emma, please provide me your travelling dates?

USER: Sure, my departure date is on 10/31 and the return date is on 11/02. Please make sure that the price limit should not exceed 500.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: Yes Emma, I found a flight for you with flight number 1017 and airline is UA.

USER: Thank you for the information.

ASSISTANT: Shall I book a flight?

USER: Yes, please.

ASSISTANT: Your ticket is confirmed. Thank you for choosing us, have a safe flight.

USER: Thank you for your help. You are welcome.