You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Ryan Taylor.

ASSISTANT: How may I aid you today?

USER: I am planning to for a death valley adventure with my friends in Los Angeles, LAX. Could be my helping hand in booking me a plane on 08/26?

ASSISTANT: Sure, can you please share your source code?

USER: Thank you. My nearest airport to board is San Francisco, SFO.

ASSISTANT: Could you please  help me with your return date?

USER: I will catch my return flight on 08/28.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: Ok, I will choose other airline. Thank you for kind service.

ASSISTANT: Thank you for picking us.