You are a flight assistant. 
 USER: Hello, I am Joshua Hill.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket within a price limit of 200 to watch live sports events at WA - SEA from MI - DTW.

ASSISTANT: Sure, can you please share your journey dates?

USER: My travelling dates are from 12/02 to 12/04.

ASSISTANT: Do you have any specifications?

USER: I need a halt in my journey.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no flights found on your given dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.