You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Myself Katherine Lee. I am looking for a flight from DTW to LAX, can you help me in booking the flight ticket?

ASSISTANT: Ok, to book a flight ticket to your desired location, I need to know your travel dates to book. Can I know please?

USER: Sure, my depart date is on Oct 18 and return date is on Oct 20.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time. Make sure that I need a connecting flight under 1000 price limit.

ASSISTANT: Sorry, there are no flight available at your desired location to book.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you choosing our agency, sorry for the inconvenience caused.