You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you at this moment?

USER: As I'm a model, I have a photo shoot at San Francisco. Can you please help me out in booking the ticket from Los Angeles?

ASSISTANT: Sure, I will help you in booking your flight ticket. Can you please provide your scheduled dates of journey?

USER: Sure, I would like to depart from my location on 12/20 and return by 12/22.

ASSISTANT: Please let me know your respective location codes of your journey.

USER: Well, my nearest source airport location is LAX and destination airport location is SFO.

ASSISTANT: In order to go forward about your flight ticket booking I need your name could you provide it?

USER: Yes, myself Eric Taylor.

ASSISTANT: I am really sorry Eric, I am not able to find any of the flight which can travel to your region.

USER: That's fine, I'll choose any other mode of transport to reach my destination. Thank you anyways.

ASSISTANT: You are most welcome, thank you for choosing our service. Hope you have a nice day ahead.