You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Kevin Walker here. I am planning to visit Chicago ORD from JFK to visit my grandparents house.

ASSISTANT: Ok, please provide your preferable dates to travel?

USER: My preferable journey dates are from 02/01 to 02/03.

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

USER: Ok, no issues. Thank you for providing information.

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