You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for today?

USER: My sister blessed with a baby, so I need to go from LAX to ORD. Can you help me to find a flight?

ASSISTANT: Sure, I am here to help you. May I know the travelling dates?

USER: My travel dates are 09/16 and 09/18.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. May I know your name please?

USER: I am Jerry Evans.

ASSISTANT: Sorry Jerry, there are no flights found on your requirement.

USER: It's ok. Thanks for helping me.

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