You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am planning to visit Orlando, can you please book me a ticket from DTW to MCO?

ASSISTANT: Sure, I will help you with that. Can you please share your journey dates?

USER: My preferable journey dates are from 06/10 to 06/12.

ASSISTANT: May I know your name please?

USER: My name is Charles Evans.

ASSISTANT: I am sorry to say that there is no flight found.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for choosing us.