You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please book a flight ticket from SEA to MCO?

ASSISTANT: Sure, May I know your travelling dates?

USER: Thank you. I have planned my travel dates as Jan 03 and Jan 05.

ASSISTANT: Do you have any preferences?

USER: I would like to depart and returning in evening time only so please make sure that.

ASSISTANT: Can I know your name?

USER: Sure, myself Stephen Miller.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you.

USER: Most welcome.