You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Nicole Thomas.

ASSISTANT: How can I aid you now?

USER: Can you please book a flight ticket on 08/15 and return on 08/17?

ASSISTANT: Sure. Kindly mention your airport codes.

USER: My nearest airport code is SFO and landing airport code is LAX.

ASSISTANT: Sorry, there is no flights with your information.

USER: Thanks for your kind help.

ASSISTANT: Thank you for approaching us.