You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I want to travel to Detroit to experience Grand Canyon Adventure, can you please book a flight ticket?

ASSISTANT: Sure, May I know your name and travel dates?

USER: I am Betty Nelson. My travel dates are from 01/22 to 01/24.

ASSISTANT: Please help me with your journey codes.

USER: My travel is from Seattle, WA-SEA to Detroit, MI-DTW.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for opting us.