You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Rachel Moore here. I want to visit Detroit institute of arts, can you please book me a ticket?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, my journey dates are 11/13 and 11/15.

ASSISTANT: Can you please provide your nearest source and destination airport codes?

USER: Yes, my source airport code is PHL and destination airport code is DTW.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Sure.

ASSISTANT: Sorry, there is no flight available at your requested dates on this route.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.