You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Edwards.

ASSISTANT: Larry, how can I assist you?

USER: I want to visit a famous Automobile Industry which is in DTW. Please help me in booking my ticket from HOU.

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, my travelling dates are from 11/29 to 12/01.

ASSISTANT: I am sorry to inform you that, there is no flight available on your requested dates.

USER: It's ok, not an issue. Thank you for your help.

ASSISTANT: You are welcome.