You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to know the history and culture of Detroit, could you please help me out?

ASSISTANT: Sure, could you provide us your travel dates?

USER: Sure, my travel dates are from 08/06 to 08/08.

ASSISTANT: What is your source and destination airport codes?

USER: My source and destination airport codes are SEA and DTW.

ASSISTANT: May I know your name please?

USER: My name is Jack Evans.

ASSISTANT: Sorry Evans, there are no flights available to DTW on 08/06.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.