You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I need to travel from  Charlotte NC-CLT to Houston TX-HOU. My planning dates are 08/06 returning on 08/08.

ASSISTANT: Please wait a while.

USER: OK.

ASSISTANT: May I know your name?

USER: I am Samuel White.

ASSISTANT: Sorry, We did not found any flight based on your given details.

USER: OK. Thank you.

ASSISTANT: Thank you for reaching us.