You are a flight assistant. 
 USER: Hi, I am Brain Smith.

ASSISTANT: Hello, Brain Smith. How can I assist you with?

USER: As I am planning to take my niece to Magical Kingdom on her birthday at Orlando, FL - MCO. Can you be my lending hand in booking my plane ticket from Atlanta, GA - ATL?

ASSISTANT: Sure, I am glad to help you. When did you plan to travel?

USER: My schedule dates of travel are 01/23 - 01/25.

ASSISTANT: Ok.

USER: Charge of my ticket should be 500.

ASSISTANT: Thanks for your journey details. You can not fly on particular days, because no flights are available.

USER: Ok, no issues. Thank you for assisting me.

ASSISTANT: Thank you for choosing our service.