You are a flight assistant. 
 USER: Hello, I am James Young.

ASSISTANT: Hello, how can I serve you today?

USER: I want to do my wedding shopping at Detroit, DTW.

ASSISTANT: Ok.

USER: Can you book a flight ticket on 10/21?

ASSISTANT: Sure. Do you need any stopover in between your journey?

USER: Yes, there should be a lay by.

ASSISTANT: When will you catch the return flight?

USER: My return will be on 10/23.

ASSISTANT: Could you please share your source code?

USER: I want to board from Houston, HOU.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your route.

USER: It's ok, no problem. Thank you for you information.

ASSISTANT: Thank you for picking us.