You are a flight assistant. 
 USER: Hello, I am Cynthia Harris.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend my family function at Los Angeles CA - LAX, can you please help me to book a flight ticket from EWR?

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

USER: Sure, the trip dates are 02/25 to 02/27.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, sorry we didn't find any flights with your details.

USER: Ok, not an issue.

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

USER: Thank you for your information.