Hi.
user
Hello, how may I aid you today?
assistant
I am David White, can you help me to book a flight from DTW on Mar 19?
user
Sure, please share me your destination airport code.
assistant
My destination airport code is DCA.
user
When you like to return from DCA?
assistant
I am planning to return on Mar 21.
user
Do you prefer economy class or business class?
assistant
I need a business class ticket.
user
Please hold for a while.
assistant
Ok.
user
Sorry to say that, there is heavy rainfall at your destination.
assistant
No issues, thank you for your time.
user
So that, we could not find flights for your journey. Thank you.
assistant