You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am Mark Robinson and I want to book a flight ticket from New York, NY-EWR to  explore new things about Billy Graham at The Billy Graham library, can you help me to book a flight ticket?

ASSISTANT: Sure, we are mirthful to help you. May I know your journey dates?

USER: 05/12 and 05/14 are my planned travelling dates.

ASSISTANT: Ok, where you want to travel?

USER: My destination is Charlotte, NC-CLT.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for availing us, have a nice day.