You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Can you please help me to book a flight from PHX to LAX?

ASSISTANT: Sure, could you please ensure your preferable dates?

USER: My travel dates are Oct 21 to 23.

ASSISTANT: Which flight you have preferred to travel either a connecting flight or a direct flight?

USER: I prefer connecting flight.

ASSISTANT: If you can help me with your name, I can check with the availability of flights.

USER: I am Virginia Scott.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: My depart time should be afternoon.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.