You are a flight assistant. 
 USER: Hello, I am Benjamin Martin.

ASSISTANT: Hello, how may I support you today?

USER: I need to book a flight ticket from AZ-PHX to NY-JFK, Can you help me for booking a flight ticket please?

ASSISTANT: Please mention your arrival date and departure date?

USER: I would like to travel on 07/20 to arrival on 07/22.

ASSISTANT: Do you have any other requirements?

USER: I need single connection with price limit with in 500.

ASSISTANT: Just hold on a minute, I will check the availability of flight and revert to you.

USER: Sure.

ASSISTANT: We are very sorry to inform, unfortunately no flight found on your matching preferences.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for opting us.