You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Can you aid me to book a flight ticket from PHX to HOU?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My trip dates are Sep 6 and Sep 8.

ASSISTANT: Ok, could I have your name please?

USER: Samuel White here.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I prefer for connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: My depart should be in the afternoon.

ASSISTANT: Sorry, there is no flight with your requested time.

USER: Thank you.

ASSISTANT: Thank you for consulting us, have a great day.