You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I planned to take my kids for a wedding in MCO, can you help me to book the flight ticket from DEN?

ASSISTANT: Sure, when would you like to travel?

USER: I would like to start on 05/20 and return back on 05/22.

ASSISTANT: Ok, can I know your name please?

USER: Sure, I am Karen Walker.

ASSISTANT: One flight is available with 1 connection and the price of the ticket is 200.

USER: Please make sure that the connection is 0.

ASSISTANT: Please wait let me check for it?

USER: Sure.

ASSISTANT: I'm sorry, there are no direct flights. Do you need any more information please?

USER: That's fine. Thank you for your information.

ASSISTANT: Thank you and have a nice day.