You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Myself Brandon Harris, I have a business meeting at Detroit. Can you please help me in reserving the ticket from PHX to DTW?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I will drop-off 02/09 and again I will retrieve on 02/11.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: Not a big deal, anyway thank you very much for your kind service.

ASSISTANT: You are welcome, have a great day.