You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Jones.

ASSISTANT: How may I help you out?

USER: Can you please assist me in making a plane ticket from MCO to DEN?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: I want to travel in the dates of 11/25 and 11/27.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, thank you for searching.

ASSISTANT: Thank you for choosing us.