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

ASSISTANT: Hello William King. How can I aid you today to make you happy?

USER: Can you help me booking a flight ticket from CLT to MCO?

ASSISTANT: Sure. May I know your departure and return date?

USER: My depart is on 01/15 and arrival is on 01/17.

ASSISTANT: Thank you for your details. There are no flights found with the given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.