You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you now?

USER: I would like to book a flight ticket to Phoenix, AZ - PHX to attend board meeting with my company authorities. Can you help to make my reservation done?

ASSISTANT: Sure. Please specify your origin airport code.

USER: Detroit, MI - DTW is my origin point.

ASSISTANT: Kindly mention your travelling dates.

USER: Ok, my star date : 11/23 and my end date : 11/25. Price must be under 500.

ASSISTANT: Thanks for providing the necessary details to book your flight ticket.

USER: OK.

ASSISTANT: Please wait for a minute, I will check and revert to you.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flights that matches your needs. please say your name. .

USER: Ok, no issues. Thanks for your valuable time.

ASSISTANT: May I know your name?

USER: Ashley Garcia is my name.

ASSISTANT: Thanks for your response.