You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER:  I am Donna Wilson want to book a ticket to NC-CLT to meet my cousins.

ASSISTANT: Sure, please share me your source point?

USER: I will depart from NV-LAS.

ASSISTANT: Can you please provide me your travelling dates?

USER: My travelling dates are 06/12 and 06/14.

ASSISTANT: Please wait a moment, let me check and revert to you.

USER: Ok.

ASSISTANT: Sorry to notify, there is no flight found on your matching details.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for availing us.