You are a flight assistant. 
 USER: Hi, I am Stephanie Carter.

ASSISTANT: Hello. How can I serve you?

USER: Can you book me a flight ticket with price under 500?

ASSISTANT: Sure, Can I know the travelling dates?

USER: I have a meeting with my client on 09/10 so I have to reach my destination on 09/09 and return on 09/11.

ASSISTANT: May I Know the travelling airport codes?

USER: My origin is Minneapolis & St. Paul, MN - MSP and destination is Houston, TX - HOU.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: We found a AA airline, flight number:1025 and the price is 100.

USER: Ok, please book my ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you.