You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Kenneth Mitchell, I want to book a flight from PA-PHL to CA-LAX to attend a meeting.

ASSISTANT: Sure, could you help me with your travelling dates?

USER: I will fly on 01/08 and return on 01/10.

ASSISTANT: Sorry, currently there are no flights available to your destination.

USER: Thank you for the information.

ASSISTANT: Thank you.