You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Perez.

ASSISTANT: How can I assist you?

USER: I am planning to visit DEN to meet my friend, can you please find a flight from AUS?

ASSISTANT: Sure, I will help you in booking. Can you please share your travel dates?

USER: My planning dates are from 12/28 till 12/30.

ASSISTANT: Here, I found a flight for you with 1 connection and fare is 100. Shall I proceed?

USER: You can book it.

ASSISTANT: Your booking is done with flight 1003 and airline is Delta.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight.