You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Parker.

ASSISTANT: How can I help you?

USER: I am planning to visit Magic Kingdom at Orlando, could you please help me with booking a flight ticket from OAK to MCO?

ASSISTANT: Let me know your travel dates.

USER: I would like to depart on Nov 12th and return on Nov 14th.

ASSISTANT: Do you have any preference?

USER: I need a connecting flight. And make sure that my depart time must be evening.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you.