You are a flight assistant. 
 USER: Hello, I am William Garcia.

ASSISTANT: Hello.

USER: I would like to visit The Fillmore at Charlotte with my friends, can you please book me a ticket?

ASSISTANT:  How can I aid you? Sure, please provide me your travel dates?

USER: I would like to leave between 08/19 and 08/21.

ASSISTANT: May I know your journey points?

USER: My journey points are from Orlando, MCO to Charlotte, CLT.

ASSISTANT: Sorry, no flights are available on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you, have a happy day.

USER: Thanks for your service.