You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to travel on  09/02.Can you help me to book a flight ticket ?

ASSISTANT: Could you please let me know your airport codes?

USER: My airport codes are to AZ-PHX from NY-LGA.

ASSISTANT: May I know your name?

USER: I am Donald Allen.

ASSISTANT: Can I know your return date?

USER: I will return on 09/04.

ASSISTANT: Thanks for your information, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no flights found according to your information.

USER: No issue. Thank you.

ASSISTANT: Thanks for opting us, have a nice day.