You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Margaret Taylor and I would like to book a flight ticket.

ASSISTANT: Can you please provide me your journey details?

USER: I want to fly  from  TX-HOU on 12/11 to TX-AUS on 12/13.

ASSISTANT: Please wait for a moment, I will check and back to you. I found a flight with your given details. the flight number is: 1027, airline: UA, price: 200.

USER: OK.

ASSISTANT: Shall I proceed with booking?

USER: Sure, you can proceed.

ASSISTANT: OK, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.