You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Dennis Lopez here. I am looking for a flight ticket with afternoon as the depart time. So can you book it for me?

ASSISTANT: Sure, can you share your trip dates?

USER: The trip dates for the travel are from 08 Jan to 10 Jan.

ASSISTANT: May I know your airport codes for booking?

USER: Yes, the airport codes are from PHX to SEA.

ASSISTANT: Do you have any preferences?

USER: No, that is it.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, that is not a problem.

ASSISTANT: Thank you for opting us.