You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Edward Thompson.

ASSISTANT: How can I assist you?

USER: I am looking to book a flight ticket to meet my friend in Charlotte. Can you help me for booking a flight ticket from JFK to CLT?

ASSISTANT: Can you please provide your travel dates?

USER: My travelling dates are Sep 13 and Sep 15.

ASSISTANT: Do you have any preferences?

USER: I need a direct flight in my journey.

ASSISTANT: Is there any time concern?

USER: My return time is afternoon.

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

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

ASSISTANT: Thank you for reaching us.

USER: Welcome.