You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Phillips.

ASSISTANT: How may I assist you today?

USER: Please, reserve me a flight ticket from PHX to LAX.

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: Kindly share if you have nay airline preference.

USER: No.

ASSISTANT: Can I know your planned travelling dates to proceed further?

USER: I am travelling from Dec 18 to Dec 20.

ASSISTANT: May I know your connection limit?

USER: I need a lay by in between my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: That's ok, no issues. Thank you.

ASSISTANT: Thank you for availing us.