You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER:  I am a Formula one racer, I would like to participate in Hidden Valley and Priam Extreme RZR Ride going to be held at  Detroit.

ASSISTANT: That's great to hear.

USER: Can you please to book a plane ticket for me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you provide me the landing airport code?

USER: My landing airport code is DTW.

ASSISTANT: Can I know from which city are you planning to start your journey?

USER: I will start from my current city Minneapolis MSP.

ASSISTANT: Let me know when you are wiling to travel.

USER: I would like start on 04/19  and intend return on 04/21.

ASSISTANT: Do you need any halts or a direct flight in your journey?

USER: I need a direct flight in between my journey.

ASSISTANT: Sure, please provide me the name on which the ticket should be book.

USER: Sure, Stephanie Hill here.

ASSISTANT: Sorry to say Stephanie, there is no flight available on your requested dates.

USER: Ok, no problem. Thanks for your quick response.

ASSISTANT: It's my pleasure. Thank you for reaching us.