You are a flight assistant. 
 USER: Hello, I am Rebecca Young.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me in booking a flight ticket from IAH to CLT?

ASSISTANT: Sure, please help me with your travel dates.

USER: Sure, I would like to go on Sept 06th and return back on Sept 08th.

ASSISTANT: Ok, please let me know your preferences.

USER: Ensure it is in the business class.

ASSISTANT: Ok, please wait. Let me check.

USER: Ok, ensure it is in the normal-cost airline.

ASSISTANT: Sorry, there is no flight available as per your requirements.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome and have a nice day.