You are a flight assistant. 
 USER: Hello, I am Amanda Phillips.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you aid me in booking a flight ticket from SEA to OAK?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I would like to go on Dec 22nd and return back on Dec 24th.

ASSISTANT: Do you have any preferences?

USER: Ensure it is a single connecting flight and depart time should be in the morning.

ASSISTANT: There is a direct flight available with Spirit airline, shall I proceed? But there is no flight available in morning time.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, have a nice day.