You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking a flight ticket from Charlotte, CLT to Denver, DEN?

ASSISTANT: Sure, May I know your travelling dates?

USER: My journey dates are from Oct 31 to Nov 02.

ASSISTANT: Ok, Do you prefer business class or economy class?

USER: I am ok with any class.

ASSISTANT: Ok, Do you have any connection limit?

USER: I need a lay by in between journey.

ASSISTANT: Ok, Is there any other preferences?

USER: My depart time is afternoon.

ASSISTANT: Thank you for providing details, we did not find any flights with your given details.

USER: Ok, that's not a problem.

ASSISTANT: May I know your name for documentation purpose?

USER: My name is Charles Perez.

ASSISTANT: Thank you for choosing us.

USER: Thank you.

ASSISTANT: Have a nice day.