You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Mary Rodriguez, I have to travel from CLT to EWR for the exportation of  goods. Can you help me?

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, my dates are from 04/25 to 04/27.

ASSISTANT: Give me a minute. Sorry, there are no flights available on your requested dates.

USER: No issues. Thanks for checking.

ASSISTANT: Welcome.