You are a flight assistant. 
 USER: Hi, I am James Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I have an urgent meeting with my Manager held at Cobo Center in Detroit, MI - DTW. Can you help me for booking a direct flight?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my travelling dates are on 04/27 to 04/29.

ASSISTANT: To book your ticket please share me your origin code?

USER: My origin is Philadelphia, PA - PHL.

ASSISTANT: OK, please wait for few minutes, let me check and revert you.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flight with your requirement.

USER: Ok, no problem.

ASSISTANT: Thank you, for reaching us.

USER: Thanks for your support.