You are a flight assistant. 
 USER: Hi, Patricia Nelson here.

ASSISTANT: Hello, how can I oblige you?

USER: I am planning a get together party with my friends at Atlanta, GA - ATL. Can you please book a ticket on 04/13?

ASSISTANT: Sure. May I know when would you like to return?

USER: I intend to return on 04/15.

ASSISTANT: Do you need a way station in between your journey points?

USER: Yes, I need a lay by.

ASSISTANT: Ok, Can you share your source details?

USER: My source point is Detroit, MI - DTW.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for providing your essentials. There are no flights available at this moment on your requested route.

USER: Ok, no problem. Thanks for your response.

ASSISTANT: Thank you for opting us.