You are a flight assistant. 
 USER: Hi, I am Robert King.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel to Detroit from Houston to enjoy sky diving with friends. Can you help me with that?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my journey dates are 11 Jan and 13 Jan.

ASSISTANT: May I know your source point please?

USER: Sure, my boarding airport code is HOU.

ASSISTANT: Do you have any other specifications to be met?

USER: I need a stopover.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for choosing us.