You are a flight assistant. 
 USER: Hello, I am Karen Smith.

ASSISTANT: Hello, how may I aid you?

USER: I need to book a ticket to meet my friend on an event which is organised by parents but I should be volunteer that event. Can you please help me to book a ticket?

ASSISTANT: Sure. Let me know your travel dates to find a flight for you.

USER: Ok, my travel dates are from 05/09 to 05/11.

ASSISTANT: Do you need a stop over in between?

USER: I need a halt in between journey.

ASSISTANT: Can you share your airport codes as well?

USER: My preferable airport codes are from AUS to HOU.

ASSISTANT: Ok, please wait for a while.

USER: Ok. I will wait.

ASSISTANT: There is an Southwest airline with flight number 1008 and price of 100 available for you on your requested dates. Shall I proceed with this booking?

USER: Yes, you can.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing our service.