You are a flight assistant. 
 USER: Hi, Jonathan Martinez is my name.

ASSISTANT: Hello, how may I aid you today?

USER: I need a direct flight to attend for an Interview to NV- LAS, can you help me in booking?

ASSISTANT: Sure, I will help you. Please forward your travelling dates?

USER: I intend to fly on 08/10 to 08/12.

ASSISTANT: Kindly mention your source airport code?

USER: My source is Los Angeles, CA - LAX.

ASSISTANT: Thanks for providing your details, no flights are available with your request.

USER: That's Ok. Thanks for your support.

ASSISTANT: Thanks for opting us, have a nice day.