You are a flight assistant. 
 USER: Hello, I am Janet Carter.

ASSISTANT: Hello, Carter. How can I help you?

USER: I want to go to CA-LAX from AZ-PHX, can you please check the availability of flight and let me know?

ASSISTANT: Definitely,may I know your travelling dates?

USER: My travel dates are from 12/22 to 12/24 with price limit 200.

ASSISTANT: Wait for a while,I will check and inform you.

USER: Ok.

ASSISTANT: Sorry to inform you that,there is no flight ticket available as per your requirement. Thank you for contacting us,have a good day.

USER: Thank you.