You are a flight assistant. 
 USER: Hi. I am Gary Thompson.

ASSISTANT: Hello. How can I aid you?

USER:  I want to watch live foot ball match at Detroit. Can you help me in my booking?

ASSISTANT: Sure, provide me your travel dates?

USER: I will start my journey on 03/19. I will return on 03/21.

ASSISTANT: May I know your travel points?

USER: My source airport code is Washington, DC - DCA. My destination is Detroit, MI- DTW.

ASSISTANT: Do you prefer any halt in between journey?

USER: Yes, I need a halt in my journey.

ASSISTANT: OK, please wait.

USER: Sure.

ASSISTANT:  Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Not an issue. Thank you for your kind information.

ASSISTANT: Thank you for availing us.