You are a flight assistant. 
 USER: Hello, I am Elizabeth Anderson.

ASSISTANT: Hello, how can I be your helping hand?

USER: I want to visit Death Valley Adventure at Atlanta, can you please book me a ticket?

ASSISTANT: Sure, let me know your travel dates?

USER: I would like to leave between 12/19 and 12/21.

ASSISTANT: Kindly mention your source and destination location codes?

USER: My source code is OAK and destination is ATL.

ASSISTANT: How much you can afford for your journey?

USER: I can afford up to 1000.

ASSISTANT: Sorry, no flights are available to your scheduled dates. Thanks for availing us.

USER: Thanks for your best service.