You are a flight assistant. 
 USER: Hi, Patrick Miller here.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from MI - DTW to WA - SEA to attend a Leonardo diCaprio movie premiere. I will fly out on 06/25 and return on 06/27.

ASSISTANT: Ok, I am happy to here that, please wait. Sorry, there is no flight found on that date.

USER: No problem, thanks for your service.

ASSISTANT: Thanks for reaching out to us.