You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Carolyn Young.

ASSISTANT: How can I help you?

USER: I need a direct flight to attend an interview in Los  Angeles, LAX. Can you please make  a reservation for me?

ASSISTANT: Let me know your travelling dates?

USER: My travelling dates are, depart on 09/11 and arrival on 09/13.

ASSISTANT: Can I know your boarding airport code?

USER: New York, EWR is my boarding point.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks.