You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to attend for a Film festival in Phoenix. Can you please aid me for booking from Oakland?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: I would like to depart on July 16 and return on July 18.

ASSISTANT: Do you prefer a connection flight or direct flight?

USER: I prefer to travel in a connected flight.

ASSISTANT: In which class do you want to travel?

USER: I am fine in any class.

ASSISTANT: At what time do you want to fly?

USER: I don't have any time preference.

ASSISTANT: May I know your full name, please?

USER: Sure, Joshua Hill is my name.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: That's Ok, thanks for your service.

ASSISTANT: Thank you for choosing us.