You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Paul Mitchell. I have to go Oakland next week for my film shooting purpose, can you please book a flight ticket for me from DTW to OAK?

ASSISTANT: On which dates you are willing to travel?

USER: Thanks, I want to take off on 09/10 and book my return ticket also on 09/12.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Spirit airlines. Shall I proceed with this?

USER: Please book this flight ticket for me.

ASSISTANT: Your ticket is booked in 1003 flight.

USER: Thank you for your help.

ASSISTANT: Most welcome.