You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Please help me out in booking the ticket from OAK to PHX.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates will be Mar 17 to Mar 19.

ASSISTANT: May I know your connection limit?

USER: I want direct flight.

ASSISTANT: Do you have any other requirements?

USER: My depart time must be in the morning.

ASSISTANT: May I know your name please?

USER: Christine Smith here.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.