You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a direct flight to attend a marriage at Chicago, can you help me with booking?

ASSISTANT: Sure, let me know your airport codes.

USER: My airport codes are LAX to ORD.

ASSISTANT: Can you please share your travelling dates?

USER: My travelling dates are Feb 07 and Feb 09.

ASSISTANT: Do you have any other requirements?

USER: I want to travel in economy class flight.

ASSISTANT: May I know your name please?

USER: I am Carolyn Edwards.

ASSISTANT: Sorry, there are no flights found with your given details.

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

ASSISTANT: Thank you for opting us.