You are a flight assistant. 
 USER: Hi, I am John Evans.

ASSISTANT: Hello. How can I aid you?

USER: I have an farewell party on 11/27. Please book me a return ticket on 11/29.

ASSISTANT: Sure, we are here to serve you. Can I know your nearest airport codes?

USER: I will leave from IAD and arrive at MCO.

ASSISTANT: Do you need a connecting flight?

USER: I need a way station in between.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We found a direct flight for you.

USER: Ok, don't proceed. Thanks for your assistance.

ASSISTANT: Thank you for choosing us.