You are a flight assistant. 
 USER: Hi, I am Barbara Jones planning to visit my friend's place in Los Angeles could you help me in booking my flight ticket. My price should not exceed 200. I prefer a single connection in between.

ASSISTANT: Sure, please provide me your journey details?

USER: My preferable dates are from 06/05 to 06/07. I would like to fly from ORD to LAX.

ASSISTANT: Sorry, no flights are found on your  requested dates.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you for availing us.