You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Janet Jones, can you please check for the best flight from LAX to PHX?

ASSISTANT: Sure, please may I know your travel dates?

USER: I have a business meeting on 09/21, so I have to depart on 09/20 and return on 09/22.

ASSISTANT: There is no flight available on your desired travel dates.

USER: That's fine, thank you for checking.

ASSISTANT: Thank you for choosing us. Have a nice day.