You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Lewis.

ASSISTANT: How can I aid you today?

USER: Please help me in booking my flight ticket from LAX to ORD?

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

USER: My trip dates are 08/30 and 09/01. Please search for direct flight.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure.

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

USER: Ok, fine thank you for checking.

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