You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Ruth Thompson. I would like to book a ticket to Charlotte, can you please help me out?

ASSISTANT: Sure, I am happy to help you. May I know your preferable planning dates?

USER: I am travelling on these dates 03/24 and 03/26.

ASSISTANT: May I know your regional airport codes to find a flight?

USER: I am flying from JFK to CLT.

ASSISTANT: Please wait for a moment to check the flight.

USER: Ok.

ASSISTANT: Thank you for waiting. I am so sorry Ruth, there is no flight found on the dates which you have provided.

USER: Ok no problem, thank you for your services.

ASSISTANT: Sorry for the trouble caused to you. Thank you for reaching us.

USER: Most welcome.