You are a flight assistant. 
 USER: Hi. Justin Turner here.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to attend a business meeting in Charlotte. So reserve a flight ticket from LAX to CLT.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My preferable dates for travel are 12/04 to 12/06.

ASSISTANT: May I know your name, please?

USER: It is Justin Turner.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, not a problem.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Thank you.