You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you aid me in booking a flight ticket in normal cost airline?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travel dates please?

USER: I am planning to start on Dec 29th and return back on Dec 31st.

ASSISTANT: Ok, do you have any specifications?

USER: I prefer to return back in evening time.

ASSISTANT: Ok, can you please provide your airport codes?

USER: Make sure that connection not exceeding 1. Search for the flights from PHX to PHL.

ASSISTANT: Ok, hold on for a moment.

USER: Take your time.

ASSISTANT: May I know your name please?

USER: I am Andrew Rodriguez.

ASSISTANT: Sorry Andrew Rodriguez, there are no flights available on your requested dates.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.

USER: You are welcome.