You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Lisa Lopez. I would like to find a flight on 02/09 from LAX, to visit the Arts Institute of Chicago. Can you help me out?

ASSISTANT: May I know your return details?

USER: I will be returning on 02/11 from ORD.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, no flight is available for you.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us, have a nice day.