You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you book me a ticket from AUS to LAS, to meet my brother on his birthday?

ASSISTANT: Sure, can I have your name please?

USER: Debra Hernandez here.

ASSISTANT: May I know your planned journey dates please?

USER: I am willing to travel on Aug 29 and return on Aug 31.

ASSISTANT: Do you have any airline preference?

USER: I want to travel in well-know airline with normal-cost.

ASSISTANT: Can I know your connection preference?

USER: I am comfortable with one connection.

ASSISTANT: I found an economy class in American Airlines with fare 100 and it is a connecting flight. Can I book your ticket?

USER: Please proceed with booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.