You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best serve you today?

USER: I need to book my ticket from PHX to OAK. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, when do you want to start and return on?

USER: I want to start my journey on Dec 14 and return back on Dec 16.

ASSISTANT: Do you prefer a connecting flight?

USER: Yes, I prefer a connecting flight in my journey.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the afternoon time and return back  in the morning time.

ASSISTANT: Can I know your good name?

USER: Sure, my name is Ronald Jones.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Not an issue with this one, anyway thank you for the information.

ASSISTANT: Thank you.

USER: Thank you for your service.