You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,. how can I amend you today?

USER: Please book a ticket from Charlotte, NC-CLT to New York, NY-EWR.

ASSISTANT: Sure, we are glad to aid you. When did you schedule your trip?

USER: My travelling dates are from 09/15 to 09/17.

ASSISTANT: Thanks for your details. There is no flight found to your route.

USER: Thank you.

ASSISTANT: May I know your name for documentation purpose?

USER: I am Jeffrey Young.

ASSISTANT: Thank you for availing us.