You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Thomas Miller here.

ASSISTANT: How may I assist you?

USER: I want to visit Detroit so please book me a flight ticket from MSP.

ASSISTANT: Sure, I am gleeful to help you. May I know on what dates you are willing to travel?

USER: My trip dates will be 10/20 to 10/22.

ASSISTANT: Can you please provide me your destination location?

USER: My destination airport code will be DTW.

ASSISTANT: Do you require any stopovers in your journey?

USER: I am comfortable with the all connections.

ASSISTANT: Do you have any class preferences?

USER: I am ok with any of the classes.

ASSISTANT: Do you have any other specifications?

USER: Make sure my price limit must be 200 only.

ASSISTANT: Sorry, there are no flights found on your preferable travel dates.

USER: That's ok, not a problem. Thank you for informing.

ASSISTANT: Thank you for contacting us.