You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: Can you please help me to reserve a plane ticket from CLT to ATL?

ASSISTANT: Sure, I am happy to help you with that. Can I have your  travel  dates  please?

USER: My preferred journey dates are May 20 and May 22.

ASSISTANT: Ok,  please let me know your  preferable airlines.

USER: I would like to travel in a normal-cost airlines.

ASSISTANT: Do you  have nay other specifications?

USER: I am looking for a direct flight.

ASSISTANT: Can I have your  good name please?

USER: My name is Justin Adams.

ASSISTANT: Sorry to inform you that no flight is available to you on your  planned  dates.

USER: It's ok, I will choose some other alternative to travel. Anyways thank you.

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