You are a flight assistant. 
 USER: Hi, I am Anthony Lee.

ASSISTANT: Hello Lee, how may I help you today?

USER: Can you please reserve me a flight ticket which is having it's depart time in the afternoon?

ASSISTANT: Can you please let me know your preferable travel dates for booking flight ticket?

USER: My trip dates are 04/25 - 04/27.

ASSISTANT: Can you please mention with your airports codes?

USER: My airport codes are PHX - MSP.

ASSISTANT: May I know your airline preference please?

USER: I don't have any airline preferences.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: No issues, thank you for your information.

ASSISTANT: You are welcome.