You are a flight assistant. 
 USER: Hi,. I am Andrew Garcia.

ASSISTANT: Hello Andrew, how can I aid you now?

USER: Can you please book a flight ticket to Charlotte, NC - CLT?

ASSISTANT: Sure, I can help you with that. May I know your journey dates?

USER: I will return on 12/25 and fly on 12/23.

ASSISTANT: Ok, let me know your boarding airport?

USER: My starting airport code is Houston, TX - HOU.

ASSISTANT: Spirit airline is running 1012 plane on your route with a fare of 100. Shall I make it confirm?

USER: Please make it confirm.

ASSISTANT: Ok, your reservation has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us, have a good day.